US8325693B2 - System and method for carrying a wireless based signal over wiring - Google Patents

System and method for carrying a wireless based signal over wiring Download PDF

Info

Publication number
US8325693B2
US8325693B2 US12944964 US94496410A US8325693B2 US 8325693 B2 US8325693 B2 US 8325693B2 US 12944964 US12944964 US 12944964 US 94496410 A US94496410 A US 94496410A US 8325693 B2 US8325693 B2 US 8325693B2
Authority
US
Grant status
Grant
Patent type
Prior art keywords
signal
wiring
telephone
frequency
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US12944964
Other versions
US20110281530A1 (en )
Inventor
Ami Hazani
Shlomo Butbul
Yehuda Binder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Corning Optical Communications Wireless Ltd
Original Assignee
Corning Optical Communications Wireless Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/06Channels characterised by the type of signal the signals being represented by different frequencies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems

Abstract

A device, network and method wherein a standard wireless modem is coupled to wiring for carrying a wireless baseband signal that may be OFDM based, and may be directly generated by the wireless IF modem, or extracted from the modem RF signal. The wiring may be a building utility wiring, such as telephone, AC power or CATV wiring. The baseband signal is carried simultaneously with the utility service signal over the utility wiring using Frequency Division Multiplexing. The device may be enclosed with a data unit, a standalone dedicated enclosure, within an outlet or as a plug-in outlet adapter. Data units may couple the device by a wiring port such as standard data connector, or via wireless connection. The device may be locally powered or via a power signal carried over the wiring. This abstract is not intended to limit or construe the scope of the claims.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 12/129,278 filed 29 May 2008, which is a continuation of U.S. patent application Ser. No. 11/066,442 filed 28 Feb. 2005, now abandoned claims any and all benefits of the prior filed applications as provided by law and the contents of each of the earlier filed applications are hereby incorporated by reference in its entirety.

This application is related to U.S. application Ser. No. 11/329,270, filed on 11 Jan. 2006 and 12/038,435, filed on 27 Feb. 2008.

FIELD OF THE INVENTION

The present invention relates to the field of wired communication, and, more specifically, to using wireless oriented signals over a wired medium.

BACKGROUND OF THE INVENTION

Wired Home Networking.

Most existing offices and some of the newly built buildings facilitate a data network structure based on dedicated wiring. However, implementing such a network in existing buildings typically requires installation of new wiring infrastructure. Such installation of new wiring may be impractical, expensive and problematic. As a result, many technologies (referred to as “no new wires” technologies) have been proposed in order to facilitate a LAN in a building without adding new wiring. Some of these techniques use existing utility wiring installed primarily for other purposes such as telephone, electricity, cable television (CATV), and so forth. Such an approach offers the advantage of being able to install such systems and networks without the additional and often substantial cost of installing separate wiring within the building.

The technical aspect for allowing the wiring to carry both the service (such as telephony, electricity and CATV) and the data communication signal commonly involves using FDM technique (Frequency Division Multiplexing). In such configuration, the service signal and the data communication signals are carried across the respective utility wiring each using a distinct frequency spectrum band. The concept of FDM is known in the art, and provides means of splitting the bandwidth carried by a medium such as wiring. In the case of a telephone wiring carrying both telephony and data communication signals, the frequency spectrum is split into a low-frequency band capable of carrying an analog telephony signal and a high-frequency band capable of carrying data communication or other signals.

A network in a house based on using powerline-based home network is also known in the art. The medium for networking is the in-house power lines, which is used for carrying both the mains power and the data communication signals. A PLC (Power Line Carrier) modem converts a data communication signal (such as Ethernet IEEE802.3) to a signal which can be carried over the power lines, without affecting and being affected by the power signal available over those wires. A consortium named HomePlug Powerline Alliance, Inc. of San Ramon, Calif. USA is active in standardizing powerline technologies. A powerline communication system is described in U.S. Pat. No. 6,243,571 to Bullock et al., which also provides a comprehensive list of prior art publications referring to powerline technology and application. An example of such PLC modem housed as a snap-on module is HomePlug1.0 based Ethernet-to-Powerline Bridge model DHP-100 from D-Link® Systems, Inc. of Irvine, Calif., USA. Outlets with built in PLC modems for use with combined data and power using powerlines are described in US Patent Application 2003/0062990 to Schaeffer et al. entitled ‘Powerline bridge apparatus’. Such power outlets are available as part of PlugLAN™ by Asoka USA Corporation of San Carlos, Calif. USA.

Similarly, carrying data over existing in home CATV coaxial cabling is also known in the art, for example in US Patent application 2002/0166124 to Gurantz et al. An example of home networking over CATV coaxial cables using outlets is described in US Patent application 2002/0194383 to Cohen et al. Such outlets are available as part of HomeRAN™ system from TMT Ltd. of Jerusalem, Israel.

Telephony Definitions and Background

The term “telephony” herein denotes in general any kind of telephone service, including analog and digital service, such as Integrated Services Digital Network (ISDN).

Analog telephony, popularly known as “Plain Old Telephone Service” (“POTS”) has been in existence for over 100 years, and is well-designed and well-engineered for the transmission and switching of voice signals in the 300-3400 Hz portion (or “voice band” or “telephone band”) of the audio spectrum. The familiar POTS network supports real-time, low-latency, high-reliability, moderate-fidelity voice telephony, and is capable of establishing a session between two end-points, each using an analog telephone set.

The terms “telephone”, “telephone set”, and “telephone device” herein denote any apparatus, without limitation, which can connect to a Public Switch Telephone Network (“PSTN”), including apparatus for both analog and digital telephony, non-limiting examples of which are analog telephones, digital telephones, facsimile (“fax”) machines, automatic telephone answering machines, voice (a.k.a. dial-up) modems, and data modems.

The terms “data unit”, “computer” and “personal computer” (“PC”) are used herein interchangeably to include workstations, Personal Digital Assistants (PDA) and other data terminal equipment (DTE) with interfaces for connection to a local area network, as well as any other functional unit of a data station that serves as a data source or a data sink (or both).

In-home telephone service usually employs two or four wires, to which telephone sets are connected via telephone outlets.

Home Networking Existing in-House Wiring.

Similarly to the powerlines and CATV cabling described above, it is often desirable to use existing telephone wiring simultaneously for both telephony and data networking. In this way, establishing a new local area network in a home or other building is simplified, because there is no need to install additional wiring. Using FDM technique to carry video over active residential telephone wiring is disclosed by U.S. Pat. No. 5,010,399 to Goodman et al. and U.S. Pat. No. 5,621,455 to Rogers et al.

Existing products for carrying data digitally over residential telephone wiring concurrently with active telephone service by using FDM commonly uses a technology known as HomePNA (Home Phoneline Networking Alliance) whose phonelines interface has been standardized as ITU-T (ITU Telecommunication Standardization Sector) recommendation G.989.1. The HomePNA technology is described in U.S. Pat. No. 6,069,899 to Foley, U.S. Pat. No. 5,896,443 to Dichter, U.S. Patent application 2002/0019966 to Yagil et al., U.S. Patent application 2003/0139151 to Lifshitz et al. and others. The available bandwidth over the wiring is split into a low-frequency band capable of carrying an analog telephony signal (POTS), and a high-frequency band is allocated for carrying data communication signals. In such FDM based configuration, telephony is not affected, while a data communication capability is provided over existing telephone wiring within a home.

Prior art technologies for using the in-place telephone wiring for data networking are based on single carrier modulation techniques, such as AM (Amplitude Modulation), FM (Frequency Modulation) and PM (Phase Modulation), as well as bit encoding techniques such as QAM (Quadrature Amplitude Modulation) and QPSK (Quadrature Phase Shift Keying) and CCK (Complementary Code Keying). Spread spectrum technologies, to include both DSSS (Direct Sequence Spread Spectrum) and FHSS (Frequency Hopping Spread Spectrum) are known in the art. Spread spectrum commonly employs Multi-Carrier Modulation (MCM) such as OFDM (Orthogonal Frequency Division Multiplexing). OFDM and other spread spectrum are commonly used in wireless communication systems, and in particular in WLAN networks. As explained in the document entitled “IEEE 802.11g Offers Higher Data Rates and Longer Range” to Jim Zyren et al. by Intersil which is incorporated herein by reference, multi-carrier modulation (such as OFDM) is employed in such wireless systems in order to overcome the signal impairment due to multipath. Since OFDM as well as other spread spectrum technologies are considered to be complex and expensive (requiring Digital Signal Processors—DSP), and since telephone wiring is considered a better communication medium wherein multipath is less considered as a major impairment than it is in wireless networks, OFDM technique (and any other spread spectrum or any multi-carrier modulation), which is considered to be powerful and high performance, has not been suggested as a dominant modulation for wired communication in general and over telephone wiring in particular.

There is thus a widely recognized need for, and it would be highly advantageous to have a method and system for using spread spectrum modem technologies such as OFDM for wired applications, such as over utility wiring, and in particular over telephone wiring.

Wireless Home Networking.

A popular approach to home networking (as well as office and enterprise environments) is communication via radio frequency (RF) distribution system that transports RF signals throughout a building to and from data devices. Commonly referred to as Wireless Local Area Network (WLAN), such communication makes use of the Industrial, Scientific and Medical (ISM) frequency spectrum, which is unregulated and license free. In the US, three of the bands within the ISM spectrum are the A band, 902-928 MHz; the B band, 2.4-2.484 GHz (a.k.a. 2.4 GHz); and the C band, 5.725-5.875 GHz (a.k.a. 5 GHz). Overlapping and/or similar bands are used in different regions such as Europe and Japan.

In order to allow interoperability between equipments manufactured by different vendors, few WLAN standards have evolved, as part of the Institute of Electrical and Electronic Engineers (IEEE) 802.11 standard group, branded as WiFi Error! Hyperlink reference not valid. the Wi-Fi Alliance of Austin, Tex., USA. IEEE 802.11b describes a communication using the 2.4 GHz frequency band and supporting communication rate of 11 Mb/s, IEEE 802.11a uses the 5 GHz frequency band to carry 54 MB/s and IEEE 802.11g uses the 2.4 GHz band to support 54 Mb/s. This is described in an Intel White Paper entitled “54 Mbps IEEE 802.11 Wireless LAN at 2.4 GHz”, and a chip-set is described in an Agere Systems White Paper entitled “802.11 Wireless Chip Set Technology White Paper”, both of these documents being incorporated herein by reference.

A node/client with a WLAN interface is commonly referred to as STA (Wireless Station/Wireless client). The STA functionality may be embedded as part of the data unit, or alternatively may be a dedicated unit, referred to as bridge, coupled to the data unit. While STAs may communicate without any additional hardware (ad-hoc mode), such network usually involves Wireless Access Point (a.k.a. WAP or AP) as a mediation device. The WAP implements the Basic Stations Set (BSS) and/or ad-hoc mode based on Independent BSS (IBSS). STA, client, bridge and WAP will be collectively referred to herein as WLAN unit.

Bandwidth allocation for IEEE802.11g wireless in the USA is shown as graph 20 in FIG. 2, along the frequency axis 27. In order to allow multiple communication sessions to take place simultaneously, eleven overlapping channels are defined spaced 5 MHz apart, spanning from 2412 MHz as the center frequency for channel number 1 (shown as 23), via channel 2 centered at 2417 MHz (shown as 24) and 2457 MHz as the center frequency for channel number 10 (shown as 25), up to channel 11 centered at 2462 MHz (shown as 26). Each channel bandwidth is 22 MHz, symmetrically (±11 MHz) located around the center frequency.

WLAN unit block diagram 10 is shown in FIG. 1. For the sake of simplicity, only IEEE802.11g will be described from now on. In general, the wireless physical layer signal is handled in two stages. In the transmission path, first the baseband signal (IF) is generated based on the data to be transmitted, using 256 QAM (Quadrature Amplitude Modulation) based OFDM (Orthogonal Frequency Division Multiplexing) modulation technique, resulting in a 22 MHz (single channel wide) frequency band signal. The signal is then up converted to the 2.4 GHz (RF) and placed in the center frequency of the required channel, and wirelessly transmitted via the antenna. Similarly, the receiving path comprises a received channel in the RF spectrum, down converted to the baseband (IF) from which the data is then extracted.

The WLAN unit 10 connects to the wired medium via port 11, supporting an IEEE802.3 10/100BaseT (Ethernet) interface. The physical layer of this interface is handled by a 10/100BaseT PHY function block 12, converting the incoming Manchester or MLT3 modulated signal (according to the 10BaseT or 100BaseTX coding, respectively) into a serial digital stream. Similarly, a WLAN outgoing digital data stream is modulated to the respective coded signal and transmitted via the port 11, implementing full duplex communication. The internal digital stream may be of proprietary nature of any standard such as MII (Media Independent Interface). Such MII to Ethernet PHY 12 (a.k.a. Ethernet physical layer or Ethernet transceiver) can be implemented based on LAN83C180 10/100 Fast Ethernet PHY Transceiver available from SMSC—Standard Microsystems Corporation of Hauppauge, N.Y. U.S.A. While this function can be implemented by using a single dedicated component, in many embodiments this function is integrated into single component including other functions, such as handling higher layers. The PHY block 12 also comprises the isolation magnetics, balancing, surge protection and connector (commonly RJ-45) required for proper and standard interface via port 11.

For the sake of simplicity, in the foregoing and subsequent description only Ethernet 10/100BaseT interface will be described. However, it will be appreciated that any wired interface, being proprietary or standard, packet or synchronous, serial or parallel may be equally used, such as IEEE1394, USB, PCI, PCMCIA or IEEE1284. Furthermore, multiple such interfaces (being of the same type or mixed) may also be used.

In the case wherein the WLAN unit is integrated and enclosed within another unit (such as data unit, e.g. computer) and does not support a dedicated and direct wired interface, the function of block 12 may be omitted.

MAC (Media Access Control) and higher layers are handled in function block 13, comprising two sub blocks, designated as 10/100BaseT MAC block 13 a and IEEE802.11g MAC block 13 b (typically, the same MAC device is used for all IEEE802.11 variants, such as a/b/g). The MAC block 13 a handles the MAC layer according to IEEE802.3 MAC associated with the wired port 11. Such a function block 13 a may be implemented using LAN91C111 10/100 Non-PCI Ethernet Single Chip MAC+PHY available from SMSC—Standard Microsystems Corporation of Hauppauge, N.Y. U.S.A, which includes both the MAC 13 a and the PHY 12 functionalities. Reference is made to the manufacturer's data sheet: SMSC—Standard Microsystems Corporation, LAN91C111 10/100 Non-PCI Ethernet Single Chip MAC+PHY, Datasheet Rev. 15 (Feb. 20, 2004), which is incorporated herein by reference. Similarly, the MAC block 13 b handles the MAC layer according to IEEE802.11g MAC associated with the wireless port 22. Such MAC 13 b is designed to support multiple data rates, encryption algorithms and is commonly based on an embedded processor and various memories. Such a functional block 13 b may be implemented using WaveLAN™ WL60040 Multimode Wireless LAN media Access Controller (MAC) from Agere Systems of Allentown, Pa. U.S.A., whose a product brief is incorporated herein by reference, which is part of a full chip-set as described in WaveLAN™ 802.11a/b/g Chip Set document from Agere Systems of Allentown, Pa. U.S.A., which is incorporated herein by reference. Reference is made to the manufacturer's data sheet Agere Systems, WaveLAN™ WL60040 Multimode Wireless LAN Media Access Controller (MAC), Product Brief August 2003 PB03-164WLAN, which is incorporated herein by reference. All the bridging required in order to connect the wired IEEE802.3 MAC handled by block 13 a to the wireless IEEE802.11g MAC handled by block 13 b is also included in functional block 13, allowing for integrated and proper operation.

The data stream generated by the IEEE802.11g MAC 13 b is converted to an OFDM-based baseband signal (and vice versa) by the baseband processor 18. In common applications, the baseband processor 18 (a.k.a. wireless modem and IF transceiver) is implemented by a transmitter/receiver 14 digitally processing the data stream, and an analog unit (I-Q modulator) 15 generating the actual signal. The communication channel in wireless environments imposes various impairments such as attenuation, fading, multi-path, interferences among others, and the transmitter may process the data stream according to the following functions:

    • a. Packet framing, wherein the data from the MAC 13 is adapted and organized as packets, wherein header, CRC, preamble, control information and end-of-frame delimiter are added.
    • b. Scrambler.
    • c. Convolution encoder (such as Viterbi encoder) to allow better robustness against channel impairments such as impulse and burst noise.
    • d. Puncturer to reduce the required data rate.
    • e. Interleaver performing permutations on the packet blocks (e.g. bytes) in order to better immune against error bursts by spreading the information.
    • f. IFFT modulator to produce separate QAM (quadrature Amplitude Modulation) constellation sub-carriers.

Using digital to analog conversion, the processed digital from the transmitter 14 is used to generate the OFDM baseband signal in the modulator 15. The received OFDM baseband signal from functional block 16 is digitized by the modulator 15, processed by the receiver 14, transferred to MAC 13 and PHY 12 to be conveyed via port 11. Some implementations of WLAN chipsets provide the actual baseband signal, while others provides orthogonal analog I/Q modem signals which need to be further processed to provide the actual real analog form IF (Intermediate Frequency) OFDM baseband signal. In such a case, as known in the art, a Local Oscillator (LO) determining the IF frequency is used to generate a sine wave which is multiplied by the I signal, added to the Q signal multiplied by 90 degrees shifted LO signal, to produce the real analog IF baseband signal. Such function can be implemented based on Maxim MAX2450 3V, Ultra-Low-Power Quadrature Modulator/Demodulator from Maxim Integrated Products of Sunnyvale, Calif. U.S.A, a data sheet of which is incorporated herein by reference. The baseband processor block 18 may be implemented based on WaveLAN™ WL64040 Multimode Wireless LAN Baseband from Agere Systems of Allentown, Pa. U.S.A., whose product brief is incorporated herein by reference. SA5250 Multi-Protocol Baseband from Philips Semiconductors including both baseband processor 18 and MAC 13 b functionalities may be alternatively used.

The RF-IF Converter functional block 16 shifts the IF OFDM baseband signal from the IF band to the ISM RF band. For example, an OFDM baseband signal symmetrically centered around 10 MHz and required to use channel 2 centered at 2417 MHz, is required to be frequency shifted by 2417−10=2407 MHz. Such frequency conversion may use many methods known in the art. A direct modulation transmitter/receiver may be used, such as WaveLAN™ WL54040 Dual-Band Wireless LAN Transceiver from Agere Systems of Allentown, Pa. U.S.A., for directly converting the orthogonal I-Q analog signal to the 2.4 GHz RF band. A product brief is incorporated herein by reference. Alternatively, superheterodyne (dual conversion, for example) architecture may be used, as described for SA5251 Multiband RF Transceiver from Philips Semiconductors. The converter 16 and the baseband processor 18 constitute the wireless path physical layer processor 17.

A T/R switch 19 is used to connect the antenna 22 to the transmitter path and disconnect the receiver path (to avoid receiver saturation) only upon a control signal signaling transmission state of the WLAN unit 10. PIN Diode switch based design is commonly used, such as PIN Diode switch SWX-05 from MCE-KDI Integrated Products of Whippany, N.J. U.S.A., whose data sheet is incorporated herein by reference. The antenna 22 is coupled via a RF filter 21 in order to ensure transmitting limited to the defined band mask (removing unwanted residual signals), and to filter out noise and out of band signal in the receiving mode. Such RF filter 21 may use SAW (Surface Acoustic wave) technology, such as 2441.8 MHz SAW Filter from SAWTEK (A TriQuint company) of Orlando, Fla. U.S.A., whose data sheet is incorporated herein by reference.

Actual implementation of the WLAN unit 10 may also involve amplifiers, attenuators, limiters, AGC (Automatic Gain Control) and similar circuits involved with signal level functions. For example, a Low Noise Amplifier (LNA), such as MAX2644 2.4 GHz SiGe, High IP3 Low-Noise Amplifier is commonly connected in the receive path near the antenna 22. Similarly, a Power Amplifier (PA) is used in the transmit path, such as MAX2247 Power Amplifier for IEEE802.11g WLAN. Both the LNA and the PA are available from Maxim Integrated Products of Sunnyvale, Calif. U.S.A. For the sake of simplicity, such functions are omitted in FIG. 1 as well as in the rest of this document. Similarly, wherever either a transmitting or a receiving path is described in this document, it should be understood that the opposite path also exists for configuring the reciprocal path.

Outlets

The term “outlet” herein denotes an electro-mechanical device, which facilitates easy, rapid connection and disconnection of external devices to and from wiring installed within a building. An outlet commonly has a fixed connection to the wiring, and permits the easy connection of external devices as desired, commonly by means of an integrated connector in a faceplate. The outlet is normally mechanically attached to, or mounted in, a wall or similar surface. Non-limiting examples of common outlets include: telephone outlets for connecting telephones and related devices; CATV outlets for connecting television sets, VCR's, and the like; outlets used as part of LAN wiring (a.k.a. structured wiring) and electrical outlets for connecting power to electrical appliances. The term “wall” herein denotes any interior or exterior surface of a building, including, but not limited to, ceilings and floors, in addition to vertical walls.

Wireless Coverage.

Most existing wireless technologies such as IEEE802.11x (e.g. IEEE802.11a/g/b), BlueTooth™, UWB (Ultra WideBand) and others are limited to tens of meters in free line of sight environment. In common building environments, wherein walls and other obstacles are present, the range may be dramatically reduced. As such, in most cases a single wireless unit (such as an access point) cannot efficiently cover the whole premises. In order to improve the coverage, multiple access points (or any other WLAN units) are commonly used, distributed throughout the premises.

In order to allow the access points to interconnect in order to form a single communication cluster in which all the WLAN units can communicate with each other and/or with wired data units, a wired backbone is commonly used, to which the access points are connected. Such a network combining wired and wireless segments is disclosed for example in U.S. Pat. No. 6,330,244 to Swartz et al. Such a configuration is popular today in offices, businesses, enterprises, industrial facilities and other premises having a dedicated wiring network structure, commonly based on Category 5 cabling (a.k.a. structured wiring). The access points interface the existing wiring based on local area network (LAN), commonly by a standard data interface such as Ethernet based 10/100BaseT.

However, installing a dedicated network wiring infrastructure in existing houses is not practical as explained above. The prior art discloses using existing AC power wiring also as the wired backbone for interconnecting WLAN units. Examples of such prior art includes U.S. Pat. No. 6,535,110 to Arora et al., U.S. Pat. No. 6,492,897 to Mowery, Jr., U.S. Patent application 2003/0224728 to Heinonen et al., U.S. Pat. No. 6,653,932 to Beamish et al. Using powerlines as a backbone for connecting WLAN units involves several drawbacks. The type of wiring, noise and the general hostile environment results in a poor and unreliable communication medium, providing low data rates and requiring complex and expensive modems. In addition, the connection of a WLAN unit to the powerline requires both wireless and powerline modems for handling the physical layer over the two media involved, as well as a complex MAC (Media Access control) to bridge and handle the two distinct protocols involved. As such, this solution is complex, expensive and offers low reliability due to the amount of hardware required.

There is thus a widely recognized need for, and it would be highly advantageous to have a method and system for using wireless modem technologies and components in a wired applications. Furthermore, it would be highly advantageous to have a method and system for cost effectively enlarging the coverage of a wireless network by carrying a wireless signal over a wired medium without converting to a dedicated wired modem signal.

SUMMARY OF THE INVENTION

It is therefore an object of the invention to provide a method and system for using standard existing wireless components for wired communication.

According to the invention, a standard wireless baseband signal that is conducted by existing wireless components (widely used for wireless transmission), is coupled and carried by a wiring, as a substitute for a dedicated wiring modem. As such, a network (such as local area network) can be configured over the wiring, either in bus topology, point-to-point or any other arbitrary network topology. The invention is based on a WLAN unit design, comprising a wired data port and a wireless port (e.g. antenna) and enabling a data unit connected to the wired data port (either proprietary or standard) to wirelessly communicate with other data unit.

In one aspect of the present invention, a device is based on a WLAN data design. However, only the baseband signal is used, so that the baseband to RF portion (hereinafter ‘RF portion’) of the WLAN unit may be obviated. The baseband signal may be coupled to the wiring via isolation, analog switching, driver and receiver, filtering and impedance matching functionalities, allowing for networking over the wiring with one or more similar devices coupled thereto.

In another aspect of the present invention, the RF portion of the WLAN unit is also used. In this case, an up/down converter is connected to the RF port (instead of connecting antenna thereto). The converter shifts the center frequency down to a band usable over the wiring.

In another aspect of the present invention, the full functionality of the WLAN unit is retained, including both the antenna and the RF portion. A wiring port coupled either directly to the baseband signal or to the RF signal via an up/down converter is added. In this case, a three ports sharing device is formed, having a wiring port, wireless (antenna) port and data unit port. Data units connected to a network comprising such multiple devices may be interconnected by the wired medium (via the wiring) or via the air using the RF signals propagating through the air.

In another aspect of the present invention, the device comprises only the RF portion of a WLAN unit (including antenna). The antenna RF signal is frequency shifted by an up/down converter to a frequency band usable by the wiring (e.g. baseband signal). A similar device or a device according to any of the above embodiments connected to the wiring may couple to the signal, and use it for coupling to a data unit either directly or wirelessly.

Any single pair wiring may be used as a medium for the baseband signal. In another aspect of the present invention, the wiring is utility wiring in a building, such as telephone, CATV or AC power wiring. In the case wherein the utility wiring also carries an active service signal (e.g. telephone, CATV or AC power signal respectively), FDM technique is used, wherein the service signal and the baseband signal are carried in distinct frequency bands. In another aspect of the present invention, the device further provides a service connector allowing a service unit to be connected thereto. In any case of wiring carrying active service signal, various filters are employed in order to isolate the service signal from the baseband signal, to avoid any interference between the two signals.

In another aspect of the present invention, the device may be comprised in a data unit. Alternatively, the device may be enclosed as a stand-alone dedicated unit. In another aspect of the present invention, the device is comprised within a service outlet. Alternatively, the device may be enclosed as outlet add-on module.

The device may be locally powered by a dedicated connection to a local power source (e.g. AC power, directly or via AC/DC converter). Alternatively, the device is power fed from a power signal carried over the wiring. In the latter case, a circuitry isolating the power signal carried over the wiring is employed. In another aspect of the present invention, the device is powered by a data unit connected thereto.

In another aspect of the present invention, spread spectrum (either DSSS or FHSS) techniques such as employing a multi-carrier modulation (e.g. OFDM, DMT or CDMA) modem, which due to its complexity is mainly used for wireless applications, may be used over a wired medium such as utility wiring in a building (e.g. telephone wiring).

It is understood that other embodiments of the present invention will become readily apparent to those skilled in the art from the following detailed description, wherein are shown and described only embodiments of the invention by way of illustration. As will be realized, the invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the scope of the present invention as defined by the claims. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not as restrictive.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is herein described, by way of non-limiting example only, with reference to the accompanying drawings, wherein:

FIG. 1 shows schematically a general functional block diagram of a prior art WLAN unit.

FIG. 2 shows schematically the frequency spectrum allocation of IEEE802.11g standard.

FIG. 3 shows schematically a general functional block diagram of an exemplary OFDM modem according to the invention.

FIG. 4 shows schematically the frequency spectrum allocation over the telephone wiring according to the invention.

FIG. 5 shows schematically a general functional block diagram of an exemplary up/down converter according to the invention.

FIG. 6 shows schematically a general functional block diagram of an exemplary OFDM modem according to the invention.

FIG. 6 a shows schematically a general functional block diagram of an exemplary line interface according to the invention.

FIG. 6 b shows schematically a general functional block diagram of an exemplary network according to the invention.

FIG. 7 shows schematically a general functional block diagram of an exemplary network according to the invention.

FIG. 8 shows schematically a view of an exemplary telephone outlet according to the invention.

FIG. 9 shows schematically a view of an exemplary telephone module according to the invention.

FIG. 10 shows schematically a general functional block diagram of an exemplary OFDM modem according to the invention.

FIG. 10 a shows schematically a general functional block diagram of an exemplary OFDM modem according to the invention.

FIG. 11 shows schematically a view of an exemplary telephone module according to the invention.

FIG. 12 shows schematically a general functional block diagram of an exemplary network according to the invention.

FIG. 13 shows schematically a general functional block diagram of an exemplary OFDM modem according to the invention.

FIG. 14 shows schematically a general functional block diagram of an exemplary network according to the invention.

FIG. 15 shows schematically a general functional block diagram of an exemplary OFDM modem according to the invention.

FIG. 16 shows schematically a general functional block diagram of an exemplary OFDM modem according to the invention.

FIG. 17 shows schematically a general functional block diagram of an exemplary network according to the invention.

DESCRIPTION OF EXEMPLARY EMBODIMENTS OF THE INVENTION

The principles and operation of a network according to the present invention may be understood with reference to the drawings and the accompanying description wherein similar components appearing in different figures are denoted by identical reference numerals. The drawings and descriptions are conceptual only. In actual practice, a single component can implement one or more functions; alternatively, each function can be implemented by a plurality of components and circuits. In the drawings and descriptions, identical reference numerals indicate those components that are common to different embodiments or configurations.

A wireless based OFDM modem 30 adapted for operating over telephone wiring according to one or more embodiments of the present invention is described in FIG. 3. OFDM modem 30 is primarily based on the design and components shown as WLAN unit 10 in FIG. 1. In contrast to WLAN unit 10, the RF signal is not coupled to antenna 22, but rather connect to an up/down converter 31. The converter 31 shifts the ISM band baseband signal to a band usable over telephone wiring in home/office or any other building. Owing to FCC regulation in North America regarding radiated electromagnetic emission, the usable frequency band is considered to extend up to 30 MHz. Hence, a spectrum allocation for a baseband signal occupying 22 MHz may be between 8 MHz and 30 MHz (centered around 19 MHz), as shown in curve 43 being part of graph 40 in FIG. 4, illustrating the various power levels allocation along the frequency axis 44. Such allocation allows for ADSL signal 42 using the 100 KHz (or 25 KHz) to 1.1 MHz and the POTS signal curve 41. ADSL is an acronym for Asymmetric Digital Subscriber Line uses standard phone lines to deliver high-speed data communications both upstream and downstream, using a part of a phone line's bandwidth not used for voice so as to allow simultaneous voice and data communication.

As a non-limiting example, in the case wherein the WLAN unit 30 is using channel 10 (shown as curve 25 in FIG. 2) centered around 2457 MHz, the converter is required to shift the frequency up or down by 2457−19=2438 MHz resulting in the frequency allocation shown in graph 40.

In order to avoid interference to and from the other signals (POTS 41 and ADSL 42) carried over the same telephone pair, a High Pass Filter (HPF) 32 is connected between the converter 31 and the telephone wiring connector 36. The telephone wiring connector 36 in commonly a telephone standard RJ-11 plug used in North America, allowing for coupling the OFDM modem 30 to the telephone pair. The HPF 32 may use passive components implementing a Butterworth filter scheme. In some cases, a telephone unit is required to share the same telephone wiring connector 35. In such a case, a Low Pass Filter (LPF) 34 is used to isolate the POTS frequency band, allowing a telephone set to couple to the telephone connector 35 via a telephone jack (e.g. RJ-11 jack). Any common filter used to isolate POTS and ADSL signals (a.k.a. micro-filter) may be used as LPF 34, comprising discrete capacitors and inductors). Such configuration of connecting modem and telephone via a set of LPF and HPF units is known in the art and commonly used also in HomePNA environment.

OFDM and other spread spectrum modulation techniques are known to be powerful, robust and high-performance. Yet, their implementation complexity and associated costs have militated against their use in communication systems. Even the first WLAN technologies introduced used single-carrier technologies, such as IEEE802.11b using CCK. As such, the OFDM modem 30 shown in FIG. 3 may be used as a superior substitute to the prior art HomePNA based phonelines communication. Since the powerful OFDM technology is used, the modem performance is expected to exceed any available or future HomePNA technology using single carrier modulation (such as QAM) as known in the prior-art. Furthermore, since the modem utilizes existing off-the-shelf wireless oriented components such as the wireless MAC 13 b, the baseband processor 18 and the RF-IF converter 16, the required effort to develop a dedicated modem is obviated. Furthermore, the rapid proliferation of the WLAN solutions to the residential, office, enterprise and industrial applications, a trend expected to even grow in the future, indicates a high volume of WLAN components, resulting in easy availability, low price and ensured interoperability.

Up/Down converter 31 used for shifting the frequency as described above is well known in the art. Such converters are known to use mixing and filtering techniques, and may use single or multiple stages (Superheterodyne scheme) as well as Direct Conversion (DC) architecture. A non-limiting example for Up/Down Converter function block 37, shown in FIG. 3 to include the functions of the converter unit 31, the RF filter 21 and TX/RX Switch 19, is shown as block 50 in FIG. 5. Such a block 50 shifts the frequency of the RF signal coupled to port 51 to a low frequency (IF) signal in port 68. RF Signal received in port 51 is shifted down by a down channel based on mixer 57 a and Band Pass Filter (BPF) 58 a and is outputted at port 68. Similarly, an IF signal received in port 68 is shifted to the RF band by the up channel comprising mixer 57 b and BPF 58 b, and as RF signal outputted via port 51. The RF port 51 is coupled to the HPF 32 of the OFDM modem 30 and the IF port 68 is coupled to the RF-IF converter 16 of the OFDM modem 30.

While transmitting to the telephone pair via connector 36, a RF signal received in port 51 (from the RF-IF converter 16) is first filtered by the BPF 52 to remove any unwanted signals residing outside the frequency band of the RF channel (e.g. the ISM RF channel band). Since the converter 50 allows conversion in only one direction at a time, either up or down, ganged switches 56 a and 56 b are used, having a center pole marked as (1) and two throw states marked as (2) and (3). When converting from RF to IF, both switches 56 a and 56 b are in the (2) state, hence the down channel is operative. Such a switch may be based on PIN diode as explained above regarding switch 19. The RF signal from the RF port 51 couples to mixer 57 a via BPF 52 and switch 56 a. The mixer 57 a multiplies the local oscillator 54 sine wave signal provided to its LO port via a splitter 55 by the RF signal coupled to its RF port (using its non linear characteristics), yielding in its IF port a signal having two main components, one around the sum of the frequencies and one around their difference. The frequencies' sum signal is then filtered out by the BPF 58 a, and fed to the IF port 68 via the switch 56 b. A driver 59 may also be included in order to allow proper driving of the load connected to port 68. In a similar way, when receiving from the telephone pair, an IF signal from port 68 (originated in the telephone pair, and coupled via connector 36 and HPF 32), is routed via the switch 56 b (now in state (3)) to the IF port of mixer 57 b, via BPF 58 b. A signal is also fed from the local oscillator 54 via splitter 55 to the LO port of the mixer 57 b, which outputs an RF signal to port 51 via the switch 56 a (now in state (3)) and BPF 52. A level detector (or comparator) 53 is used to monitor the level of the revived RF signal, and accordingly operate the switches 56 a and 56 b via control channels 69 b and 69 a respectively.

The converter 50 has been described above as having dedicated up and down channels. However, since only one channel is used at a time and the two channels are not used simultaneously, a single channel (mixer) may also be used, wherein an appropriate switching mechanism is employed.

A level detector 53 may be designed based on LM311 Voltage Comparator available from National Semiconductors headquartered in Santa-Clara, Calif. U.S.A. The local oscillator 54 may be based on quartz crystal oscillator, wherein the frequency is multiplied using Phase Locked Loop (PLL) circuits, and may comprise T83027 PLL Clock Generator IC with VCXO available from TLSI Incorporated of Huntington, N.Y. U.S.A., whose data sheet is incorporated herein by reference. A mixer 57 may be designed based on MAX9993 High Linearity 1700 MHz Down-Conversion Mixer with LO Buffer/Switch available from Maxim Integrated Products of Sunnyvale, Calif. U.S.A, whose data sheet is incorporated herein by reference. It should be noted that other techniques and methods to implement the converter block 50 functionality are known in the art and may be equally used. Typically, converter block 50 may connect to the telephone wiring using line interface functionalities such as isolation, impedance matching, driving/receiving and filtering, as will be described below for line interface 76 shown in FIG. 6.

The OFDM modem 30 inherently employs double frequency conversions: from IF to RF by converter 16 and back to low frequency by converter 31. This redundancy may be obviated by directly extracting the baseband signal without going through the RF stage, as shown in OFDM modem functional block diagram 60 illustrated in FIG. 6, which may be used in one or more embodiments of the present invention.

Similar to modem 30, modem 60 is based on WLAN unit 10 described in FIG. 1. However, the OFDM baseband signal generated by the broadband processor 18 is not frequency shifted to RF, but rather handled directly in the IF spectrum. In one non-limiting example, the baseband processor 18 provides an orthogonal analog I/Q signal pair. In this case, a line interface 76 using a Quadrature Modulator/Demodulator 191 shown in FIG. 6 a converts the signals directly to a baseband analog signal centered around 19 MHz (for example by using 19 MHz local oscillator) in the example of spectrum allocation according to graph 40. In another example, an analog signal centered around another frequency is output by the WLAN components comprising baseband processor 18, and in such a case a simple and single frequency conversion may be used in order to center the signal around 19 MHz.

A functional block diagram of the line interface 76 is shown in FIG. 6 a. The line interface 76 couples to the I-Q modulator 15 in the baseband processor 18 via port 192. The I-Q signals are converted into a single real signal centered around the 19 MHz frequency (shifted from zero) by the Quadrature Modulator/Demodulator 191, which may be based on Maxim MAX2450 3V, Ultra-Low-Power Quadrature Modulator/Demodulator from Maxim Integrated Products of Sunnyvale, Calif. U.S.A, whose data sheet which is incorporated herein by reference. The Modulator/Demodulator output impedance is 75 ohms terminated by a resistor 190 (if required), and fed to a driver 186 via BPF 188 a, passing only the required band (e.g. band 43 in graph 40). An analog switch 183 routes the transmitted signal to the telephone wiring (via port 36 and HPF 32) via an isolation unit 182 and through port 181. The isolation unit 182 is typically based on a signal transformer 193, and serves to reduce common-mode noises so as to provide a balanced signal, as well as meeting the required safety and ESD requirements imposed by the UL in the U.S.A. and CE in Europe.

Similarly, a signal received from the telephone wiring is isolated by the isolation unit 182, and routed via the analog switch 183 to an AGC 187. A 100 Ohm resistor 185 serves as a termination, matching the telephone wiring characteristic impedance to avoid reflection. After being filtered by a BPF 188 b, the signal is I-Q modulated by the modulator 191 and coupled to the baseband processor 18.

A sample network 75 over a telephone line using OFDM modems is shown in FIG. 6 b. A telephone wiring infrastructure as commonly exists in residences in North America is described, based on single telephone pair 62 accessed via outlets 63. A daisy-chain configuration is shown, wherein wiring segment 62 d connects outlets 63 d and 63 c, wiring segment 62 c connects outlets 63 b and 63 c and wiring segment 62 b connects outlets 63 a and 63 b. Wiring segment 62 a connects the ‘first’ outlet 63 a to the PSTN (Public Switched Telephone Network) 61 via a junction box (not shown) and the external wiring part known as ‘local loop’ or ‘subscriber loop’. In each outlet, a standard telephone RJ-11 jack is connected to the wiring 62, allowing telephone units to be connected thereto, using RJ-11 plug. Outlets 63 a, 63 b, 63 c and 63 d respectively comprise jacks 64 a, 64 b, 64 c and 64 d. Other wiring topologies such as ‘star’ (a.k.a. ‘HomeRun’, ‘structured wiring’), tree and mixed topologies are also available, and are also suitable.

OFDM Modems 30 and 60 may be connected to and networked over the telephone wiring 62 by connecting to the respective RJ-11 telephone connector 64 in outlet 63, and via cable 74 to the OFDM modem connector 36, marked as ‘wiring’ connection. A network may include only OFDM modems 30 as shown functionally in FIG. 3, or only OFDM modems 60 as shown functionally in FIG. 6 or any combination thereof. The network 75 is shown to include an OFDM modem 30 b connected by a cable 74 d to outlet 63 d, an OFDM modem 60 a connected by a cable 74 b to outlet 63 b and OFDM modem 30 a connected by a cable 74 a to outlet 63 a. In each case, connection to the outlets is via the respective connectors 64 d, 64 b and 64 a. Computer 66 a is shown connected to the OFDM modem 30 b via its ‘data’ port (representing port 33 in FIG. 3), and computer 66 b is connected to OFDM modem 60 a via its ‘data’ port (representing port 33 in FIG. 6). The computers 66 represent any data units, preferably connected via a standard wired data interface. The modems 30 a and 60 a allow a half duplex communication between the computers 66 a and 66 b over the telephone wiring. Similarly, additional OFDM modem 30 a may also support an additional data unit through its ‘data’ port.

Simultaneously with the data network formed over the telephone line, the standard telephone service is also provided. Telephone set 65 a is connected to the wiring 62 (so as to connect to the PSTN 61) via the ‘TEL.’ Port (port 35 in FIG. 3). Similarly, telephone sets 65 c and 65 d connect to the PSTN 61 (via the respective outlets 63 and wiring 62) by connecting to OFDM modems 60 a and 30 a, respectively. Telephone set 65 b is directly connected to outlet 63 c (via cable 74 c and plug/jack 64 c). In such a case, the usage of LPF 34 (a.k.a. micro-filter) is recommended in order to avoid interference to and from the other signals using the same telephone wiring as a medium.

In order to enable the computers 66 a and 66 b to connect to an external network (such as the Internet), a device connected to the external network (either broadband or narrowband) is commonly employed, non-limiting examples including a DOCSIS based cable modem, an ADSL modem, wireless (such as WiMax) and others. Such a device should be connected to the ‘data’ port of any OFDM modem, hence allowing sharing the external connection to data units connected throughout the building. In one example, an ADSL modem 67 is used. The ADSL modem is shown to connect to the telephone outlet 63 a via cable 74 e for coupling to the ADSL signal 42 (depicted in FIG. 4), and providing a standard data interface (e.g. USB, 10/100BaseT). This data interface in turn connects to the OFDM modem 30 a ‘data’ port, thus allowing computers 66 a and 66 b to share the ADSL connection via the formed network. The OFDM modem 30 a is likewise connected to the telephone outlet 63 a via a cable 74 a (together with cable 74 e).

While network 75 has been described with regard to ‘bus’ topology wherein all the modems are connected to the same medium (telephone wiring 62), it is known that better communication performance (e.g. data-rate) may be achieved in point-to-point structure, wherein two modems are connected at the ends of a wiring segment. Such configuration may exist in newly installed infrastructures (e.g. structured wiring in a newly constructed building) or in MDU (Multiple Dwelling Unit), MTU (Multiple Tenant Unit) and MHU (Multiple Hospitality Unit). In all the above, the wiring segments are in ‘star’ topology, wherein each wiring segment connects a remote site (e.g. apartment) to a center (e.g. basement).

An application of OFDM modems to such topology is shown as a non-limiting example as network 70 in FIG. 7. The infrastructure of network 70 is described as comprising two wiring segments (each comprising a single pair) 72 a and 72 b, respectively connected between connection points 73 a and 73 b (e.g. in junction box) and respective outlets 63 a and 63 b, allowing telephone connection via the respective connectors 64 a and 64 b. In order to allow both telephone and data signals over the same wire pair, OFDM modems (either modem 30 or modem 60 types) are connected to each wiring end. OFDM modem 60 a connects to wiring segment 72 a via outlet 63 a, communicating over the wiring segment 72 a with OFDM modem 30 a connected to the other end of the wiring segment 72 a via connection point 73 a. Telephone signals are carried over the lower band, allowing telephone set 65 a to connect to PSTN 61, simultaneously with the OFDM signal carried over a distinct band and connecting the computer 66 a (representing any data unit) to the Internet 71 (via any connection such as ADSL DOCSIS cable modem or wireless). Similarly, OFDM modem 30 c connects to wiring segment 72 b via outlet 63 b, communicating over this pair with OFDM modem 30 b connected to the other end via connection point 73 b. Telephone signals are carried over the lower band, allowing telephone set 65 b to connect to PSTN 61, simultaneously with the OFDM signal carried over a distinct band and connecting the computer 66 b (representing any data unit) to the Internet 71 (via any connection such as ADSL DOCSIS cable modem or wireless).

Outlet Enclosed Modem.

Outlets in general (to include LAN structured wiring, electrical power outlets, telephone outlets, and cable television outlets) have traditionally evolved as passive devices being part of the wiring system house infrastructure and solely serving the purpose of providing access to the in-wall wiring. However, there is a trend towards embedding active circuitry in the outlet in order to use them as part of the home/office network, and typically to provide a standard data communication interface. In most cases, the circuits added serve the purpose of adding data interface connectivity to the outlet, added to its basic passive connectivity function.

An outlet supporting both telephony and data interfaces for use with telephone wiring is disclosed in U.S. Pat. No. 6,549,616 entitled ‘Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets’ to Binder. Such outlets are available as part of NetHome™ system from SercoNet Inc. of Southborough, Mass. U.S.A.

Another telephone outlet is described in U.S. Pat. No. 6,216,160 to Dichter, entitled ‘Automatically configurable computer network’. An example of home networking over CATV coaxial cables using outlets is described in US Patent Application 2002/0194383 to Cohen et al. entitled: ‘Cableran Networking over Coaxial Cables’ to Cohen et al. Such outlets are available as part of HomeRAN™ system from TMT Ltd. of Jerusalem, Israel. Outlets for use in conjunction with wiring carrying telephony, data and entertainment signals are disclosed in US Patent Application 2003/0099228 to Alcock entitled ‘Local area and multimedia network using radio frequency and coaxial cable’. Outlets for use with combined data and power using powerlines are described in US Patent Application 2003/0062990 to Schaeffer et al. entitled ‘Powerline bridge apparatus’. Such power outlets are available as part of PlugLAN™ by Asoka USA Corporation of San Carlos, Calif. USA.

While the active outlets have been described above with regard to networks formed over wiring used for basic services (e.g. telephone, CATV and power), it will be appreciated that the invention can be equally applied to outlets used in networks using dedicated wiring. In such a case, the outlet circuitry is used to provide additional interfaces to an outlet, beyond the basic service of single data connectivity interface. As a non-limiting example, it may be used to provide multiple data interfaces wherein the wiring supports single such data connection. An example of such outlet is the Network Jack™ product family manufactured by 3Com™ of Santa-Clara, Calif., U.S.A. In addition, such outlets are described in U.S. Pat. No. 6,108,331 to Thompson entitled ‘Single Medium Wiring Scheme for Multiple Signal Distribution in Building and Access Port Therefor’ as well as U.S. Patent Application 2003/0112965 Published Jun. 19, 2003 to McNamara et al. entitled ‘Active Wall Outlet’.

While the outlets described above use active circuitry for splitting the data and service signals, passive implementations are also available. An example of such passive outlet is disclosed in WO 02/25920 to Binder entitled ‘Telephone communication system and method over local area network wiring’. Such outlets are available as part of the etherSPLIT™ system from QLynk Communication Inc. of College Station, Tex. USA.

As known in the art, from the data communication (high frequency band) point of view, the cables 74 connected to the outlets 63 in system 75 are known as ‘taps’. Cable 74 c, terminated in the LPF 34 is considered an ‘open tap’ or ‘bridged tap’. The same goes for cable 74 e, terminating the ADSL band, but open for higher frequencies. Cable 74 b (as a non-limiting example) is considered a ‘terminated tap’, since appropriate termination is expected to be part of the OFDM modem 60 a. Taps in general and non-terminated taps in particular, are considered a major impairment in any wired communication system. Reflections are generated at the tap points and at the ends of open taps, resulting in a ‘notch’ pattern in the appropriate frequency. Such characteristics render part of the spectrum non-usable. As such, taps results in lower communication performance, and it is therefore desirable to eliminate taps as much as practical.

Wireless system in general, and WLAN systems in particular are associated with mobile and handheld devices such as PDA (Personal Digital Assistant), cellular phone, remote-controller and laptop computers. Being mobile and man-carried, the space and weight of the wireless components is critical. As such, a lot of resources are allocated to integration and miniaturization efforts in order to make the wireless components as small as possible. Vendors are increasingly focusing on integrating more and more functions into a minimum set of chips and peripherals. Hence, the small dimension featured by the wireless components makes them well suitable to be housed within small enclosures such as outlets.

In one or more embodiments of the present invention, the OFDM modem (partially or completely) is integrated into a telephone outlet. In addition to providing all the advantages described in the aforementioned prior art, such configuration eliminates the tap related impairments, thus improving the communication performance. As a non-limiting example, in the case the OFDM modem functionality is integrated into outlet 63 d, the cable 74 d is effectively zero in length, hence effectively eliminating the tap existence.

A pictorial view of such outlet integrating OFDM modem functionality is shown as outlet 80 in FIG. 8. The telephone wiring connector 36 is in the back of the outlet (facing the wall), for connecting to the wiring in the common way of connecting wiring to a telephone outlet. The outlet 80 front (facing the room) comprises connector 33, shown as RJ-45 for 10/100BaseT interface. A telephone connector 35 a is shown as standard telephone connector RJ-11 jack. A second connector 35 b may also be used for allowing connection to multiple telephone sets. The outlet 80 also comprises indicators 81 a and 81 b (LEDs) that may be used to indicate proper operation such as power availability, communication status (such as LINK signal in Ethernet systems), communication performance and others.

The above-described outlet 80 is a complete and self-contained device. As such, it can be easily installed in new houses instead of regular passive simple outlets. However, such solutions are not appropriate in the case of retrofitting existing wiring systems. In most cases, any such modification will require dismantling the existing outlets and installing the new ones having the improved features. Such activity is cumbersome, expensive and will often require professional skill. Furthermore, owing to safety aspects involved while handling hazardous voltages (such as in the powerlines and telephone lines), local regulations may require only certified personnel to handle the wiring, making it expensive and militating against a do-it-yourself approach.

Furthermore, as technology and circumstances change in time, a need to upgrade, modify or change the outlet functionalities, features and characteristics may arise. For example, the data interface may need to be upgraded to interconnect with new standards. In another example, the circuitry may need to be upgraded to support higher bandwidth. Similarly, management and Quality of Service (QoS) functionalities may need to be either introduced or upgraded. In yet another example, additional functionalities and interfaces may need to be added. Using complete self-contained outlets as a substitute to the existing ones also introduces the disadvantages described above.

One approach to adding functionality to existing outlets is by using a plug-in module. Such plug-in modules for use with powerline communication are described in US Patent Application 2002/0039388 to Smart et al. entitled ‘High data-rate powerline network system and method’, US Patent Application 2002/0060617 to Walbeck et al. entitled ‘Modular power line network adaptor’ and also in US Patent Application 2003/0062990 to Schaeffer, JR et al. entitled ‘Powerline bridge apparatus’. Such a module using HomePlug™ technology are available from multiple sources such as part of PlugLink™ products by Asoka USA Corporation of San Carlos, Calif., USA. However, such plug-in modules are known only with regards to power outlets, and are not available for telephone or CATV outlets.

A plug-in module according to one or more embodiments of the present invention is shown as module 90 in FIG. 9. The module 90 is based on the outlet 80 described above. However, in contrast to being an outlet, the module 90 has an RJ-11 plug that plugs in the RJ-11 jack 93 of the telephone outlet 91, the latter thus not requiring replacement or modification. In order to allow mechanical securing of the connection, the module 90 comprises two sliding sides 94 a and 94 b, which are latched and pressed against the outlet 91 surfaces 92 a and 92 b respectively. In this way, the module 90 is both electrically connected to the wiring and mechanically attached to outlet 91, while not requiring any specific skills or tools. The POTS service is fully retained through the telephone connectors 35 a and 35 b.

Wireless Port.

Both OFDM modems 30 and 60 described above offer two wired ports, namely the data unit port 33 and the telephone wiring port 36, and function to convert signals between those ports. Adding a wireless port will enable the OFDM modems also to network with data units over a non-wired medium.

Such an OFDM modem 100 comprising an antenna 22 as a wireless port is shown in FIG. 10. Generally, such a modem 100 can be considered as a combination of a WLAN unit 10 and OFDM modem 30 respectively as described above in relation to FIGS. 1 and 3. Modem 100 is shown to include the full WLAN unit 10 functions, and as such may function as WLAN unit 10. However, the RF signal is coupled in between the RF-IF converter 16 and TX/RX Switch 19 by a sharing device 101. The RF signal is thus also coupled to the telephone wiring connector 36 via the Up/Down Converter 31 and the HPF 32, similar to the description above relating to OFDM modem 30. Similarly, a telephone set may be coupled via connector 35 and LPF 34.

The sharing device 101 is a three ports device and functions to share the three RF signals, such that an RF signal received in any one of the ports is replicated and shared by the other two ports. One RF signal relates to the wireless radio communication via the antenna 22, a second signal relates to the telephone wiring carried signal via connector 36 and the third RF signal is associated with the data port 33.

In such a configuration, the OFDM modem 100 communicates via three ports: Wireless port via antenna 22, wired data unit port via connector 33 and wired telephone wiring connector 36. A data packet (such as Ethernet packet) received from the data unit connected via port 33 will be converted to an OFDM RF signal at the RF-IF Converter 16 port, and then fed via sharing device 101 to both the telephone wiring after being down converted to a baseband signal by the Up/Down Converter 31 and through HPF 32 (as described above for modem 30), and in parallel (via sharing device 101) to the antenna 22 to be transmitted over the air. Similarly, an OFDM RF signal received in the antenna 22 is fed via the sharing device 101 to both the telephone wiring port 36 in analog baseband form and data unit port 33 as digital packets. Baseband signals received via the telephone wiring port will be converted to RF and then transmitted to the air by the antenna 22 in parallel to being down frequency converted and encoded into a packet in digital form in port 33. In some cases, an RF signal may be received from both the antenna 22 and the telephone wiring (via port 36). Since wireless systems are able to handle the through-air multi-path phenomenon, the signal received via the telephone wiring channel should be appreciated as another signal path, hence being handled by the baseband processor 18.

The three ports modem 100 is shown to share the three RF signals by sharing device 101. In one or more embodiments of the present invention, the sharing function is performed in the baseband (or IF) frequency spectrum. Such a modem 105 is shown in FIG. 10 a. Similar to modem 100, three ports are supported, two wired and one wireless. However, in contrast to modem 100, the sharing device 106 shares three baseband signals: an antenna 22 coupled signal, via the RF-IF Converter 16, telephone wiring signal via line interface 76 and data unit related signal via the baseband processor 18. One advantage of such configuration is the use of a single Up/Down Converter 16, rather than the two converters (16 and 31) used in modem 100 configuration.

Similar to the above discussion relating to OFDM modems 30 and 60, wireless-port equipped modems 100 and 105 may be equally enclosed within a telephone outlet or snap-on module. Such a snap-on module 110 attached to a telephone outlet 91 is shown in FIG. 11. Module 110 is similar to module 90 shown in FIG. 9, but in contrast attaches to the outlet using screws 111 a and 111 b rather than by snap-fit connection. It should be noted that other mechanical attachment means could be equally employed. In addition to the wired ports shown for module 90, an antenna 22 is shown, serving as additional over-the-air wireless port.

A network 120 utilizing a wireless port equipped OFDM modem 100 is shown in FIG. 12. OFDM modem 105 may be equally employed. The network 120 is based on network 75 shown in FIG. 6 b, wherein OFDM modem 100 a substitutes OFDM modem 30 b, hence introducing a wireless port 22 a to the network. Computer 66 a and telephone unit 65 a connect to the OFDM modem 100 a in a similar manner as before. The additional port 22 a allows for a laptop computer 66 c to be connected to the wireless bridge 121 a comprising an antenna 22 b. Similarly, the wireless client functionality 121 a may be built in the computer 66 c. A wireless link according to standard IEEE802.11g is established between the bridge 121 a and the modem 100 a, hence enabling the computer 66 c to network with the other data units connected to the telephone wiring 62, as well as to computer 66 a.

While a single modem 100 or 105 is part of network 120, it should be appreciated that multiple such modems may be used, each covering a different area in the premises, hence enlarging the actual wireless coverage. Furthermore, such network 120 offers the user the flexibility of adding data units either through wiring (by connecting to the data ports of the OFDM modems) or wirelessly (via the wireless port).

In some cases, only wireless ports may be required, thus tethered data unit connection may be obviated. According to one or more embodiments of the present invention, a wireless adaptor 130 supporting only wireless port is shown in FIG. 13. The data unit port 33 associated functions described for modem 100 in FIG. 10 (such as baseband processor 18, MAC layer processor 13 and PHY 12) are omitted. The receiving path comprises the antenna 22, RF Filter 21 and TX/RX Switch 19. The received RF signal is then frequency down shifted by Up/Down converter 31, and fed to the telephone wiring via connector 36 and HPF 32. Similarly, any OFDM signal carried by the telephone wiring is received and up converted to RF, and then feeds the antenna 22. A telephone set may be connected to the telephone wiring via connector 35 and LPF 34.

A network 140 employing the wireless adaptor 130 is shown in FIG. 14. Wireless adaptors 130 a and 13 b are respectively connected to outlets 63 d and 63 b, and respectively employ antennas 22 a and 22 c. Computer 66 c is wirelessly coupled to the telephone wiring 62 via the wireless bridge 121 a and antenna 22 b, communicating with adaptor 130 a via its antenna 22 a. Similarly, computer 66 d is wirelessly coupled to the telephone wiring 62 via the wireless bridge 121 b and antenna 22 d, communicating with adaptor 130 b via its antenna 22 c. In this configuration, the computers 66 c and 66 d communicate over the telephone wiring 62 via the respective adaptors 130. In such a system, the telephone wiring 62 and the adaptors 130 serve as a repeater, thus allowing communication between units, which cannot directly wirelessly communicate. The lower frequency band of the wiring is used simultaneously to carry telephone signals between the PSTN 61 and the telephones 65 a, 65 b, 65 c and 65 d. Telephone sets 65 a and 65 c respectively connect via adaptors 130 a and 130 b. Telephone sets 65 b and 65 d connect to the wiring 62 via LPFs 34 a and 34 b, respectively.

Antennas 22 b and 22 d may be sufficiently close to enable direct wireless communication between bridges 121 a and 121 b. In such case, in addition to the path (or multiple paths) formed through the air, a telephone wiring path is added. As a non-limiting example, bridge 22 d may receive signals transmitted by bridge 121 a via the air. In addition, the transmitted signal is received by adaptor 130 a (via antenna 22 a), and converted to baseband and carried over the telephone wiring segments 62 d and 62 c. The signal is then extracted by adaptor 130 b, up frequency shifted and transmitted through the air via antenna 22 c to the bridge 121 b, hence forming an additional path. Since most wireless technologies and IEEE802.11g in particular are well equipped to handle multi-path, this phenomenon is not expected to degrade the communication performance.

While the invention has been described with regard to ‘bus’ topology telephone wiring, it will be appreciated that wireless-port equipped modems and adaptors may equally be used in point to point topology, ‘star’ topology or any combination thereof.

While the invention has been described with regard to a single specific channel frequency shifted to a specific band for use over the telephone wiring, it will be appreciated that the invention equally applies to any channel that can be used (as shown in graph 20) and may be located at any usable frequency band over the telephone wiring (not limited to the example shown as curve 43 of graph 40). Furthermore, several products are currently available using multiple channels in order to improve data rate performance, as well as using other techniques to improve throughput such as compression. Such techniques are sometimes known as ‘Turbo-G’, ‘Dynamic Turbo’, ‘Super G’ and other brands. Such a solution may be equally employed in one or more embodiments of the invention, using larger baseband signal bandwidth. Exemplary techniques to improve effective data rate are described in Atheros Communication White Paper entitled “Super G Maximizing Wireless Performance”, which is incorporated herein by reference.

While the invention has been described with regard to modems and adaptors supporting telephone port 35, it will be appreciated that the invention equally applies to the case wherein the telephone wiring is not carrying a telephone (POTS) signal. In such a case, telephone connector 35, LPF 34 may be omitted, and HPF 32 may be omitted and bypassed. Furthermore, such configuration may apply to any type of wiring dedicated for carrying the baseband signal, not limited to telephone wiring of any kind.

In one or more embodiments according to the present invention, other utility wiring (not limited to telephone oriented wiring) is used, carrying a service signal. For example, powerlines may be used to carry both the AC power signal and the OFDM signal according to one or more embodiments according to the present invention. In such a case, the HPF 32 should be substituted with HPF filtering out the low frequency band (i.e. 60 Hz in North America and 50 Hz in Europe) carrying the AC signal and its associated noises. Similarly, in the case wherein the modem is required also to provide AC power connection, the telephone connector 35 should be substituted with a two or three prongs power jack suitable for connecting powered appliances, and the telephone-oriented LPF 34 should be substituted by a LPF passing the 50/60 Hz AC signal. Furthermore, similar to the above discussion about housing the modem within a telephone outlet and telephone outlet snap-on module, the powerline OFDM modem may be equally enclosed within an AC power outlet and snap-on module respectively, with the warranted modifications.

In one or more embodiments according to the present invention, the OFDM baseband signal is carried over CATV cabling, carrying a CATV service signal. In one or more embodiments, the baseband signal may be employed over a band not used for carrying CATV signals (e.g. over 750 MHz in some implementations). The CATV analog video channels are usually carried each occupying a 6 MHz wide band. In such a case, an allocation of four adjacent channels will result in a total bandwidth of 6*4=24 MHz, which may contain the 22 MHz wide OFDM baseband signal. In such case, the Up/Down Converter 31 used should shift the band to the allocated bandwidth, for example by tuning the local oscillator 54 frequency to the required value. Similarly, The HPF 32 should be substituted with a BPF passing the allocated 24 MHz, and the LPF 34 should be substituted with a BSP (Band Stop Filter) blocking the OFDM signal and passing the CATV channels, to be coupled to via RF connector (BNC or F-Type) substituting for the telephone connector 35.

A non-limiting example of generalizing OFDM modem 30 to be used with any type of utility wiring is shown as modem 150 in FIG. 15. Connector 151 is connectable to appropriate utility wiring, and represents a dedicated specific applicable connector, such as telephone connector 36 (e.g. RJ-11 plug) in the case where the utility wiring is telephone wiring, or an RF connector in the case of CATV cabling and AC power plug in the case of powerlines. Similarly, a service connector 152 represents the appropriate service signal connector such as telephone connector 35, RF connector and AC power jack when used with telephone, CATV and AC power wiring, respectively. Service/Data Splitter/Combiner 153 functions to pass the service signal to the service connector 152, to couple the OFDM baseband signal to the Up/Down Converter block 37 and to avoid interference between both signals. In the case of telephony, the functionality of the Splitter/Combiner 153 is provided by the LPF 34 and HPF 32. Similarly, LPF and HPF are used in powerline applications, for coupling/stopping the AC power signal. For use over CATV wiring, BPF (Band Pass Filter) and BSP (Band Stop Filter) are used as described above.

Powering.

In most of the embodiments according to the present invention, the OFDM modems (or wireless adaptor) include active components (such as Up/Down converter 31), and as such need to be powered. Three non-limiting powering schemes are described hereinafter including local feeding, power over wiring and via the interface module. The powering schemes apply to the modem/adaptor being a stand-alone enclosure, housed within an outlet, enclosed within a snap-on outlet module or as part of a data unit.

Local Feeding.

In this implementation the module is connected to an external power source for feeding its active components. A common small AC/DC converter may be connected to the modem/adaptor via a dedicated power connection.

A power adaptor may be used in the modem/adaptor, for adapting the external power to the internal needs. Such an adaptor may include voltage conversion (such as DC to DC converter) in order to adapt to specific voltages required, protection circuits (such as fuse or current limiting), regulation and noise filtration, as well as other functionality as known in the art.

Power Over Wiring.

In one or more embodiments according to the present invention, the OFDM modem (or the wireless adaptor) is fed by power carried over the wiring to which the module is connected. The power may be carried over separated conductors. In this case, the same wiring connector (such as 36 or 151) may be used to connect to the power carrying conductors using separated pins. Alternatively, an additional power dedicated connector may be used.

In one or more preferred embodiments, the power is carried simultaneously over the wiring carrying the data network signals and/or the basic service signal. The implementation of such a mechanism is trivial when the basic service is AC power. In such a case the power is extracted from the AC power signal carried, commonly via AC/DC converter and LPF filter.

Similarly, a recent technique known as Power over Ethernet (PoE) (a.k.a. Power over LAN) and standardized under IEEE802.3af, also explained in U.S. Pat. No. 6,473,609 to Lehr et al. titled: “Structure Cabling System”, describes a method to carry power over LAN wiring, using the phantom mechanism. Such technology, as well as others, may be used to provide power to any of the modems/adaptors described above, in the case where appropriate cabling (such as CAT. 5) is used as the wired medium. As a non-limiting example, in the case of using a different spectrum for the power signal, a filter should be used. In the case of phantom type of feeding, two transformers are required as known in the art.

Recent techniques developed allow for carrying simultaneously power and basic service (and data) over the same wiring infrastructure. U.S. patent publication 2002/0003873 to Rabenko et al. titled: “System and method for providing power over a home phone line network” teaches carrying AC power over telephone wiring carrying both telephony and data, by using a part of the spectrum not used by the other signals. Such a technique may be used for powering a modem or adaptor according to the current invention. As a non-limiting example, AC power using a sine wave power signal of 50 KHz may be used. As shown in graph 40, a 50 KHz signal is in a non-allocated frequency band, and hence may be used for power distribution with minimum or no interference to the other signals carried over the same telephone wire pair.

In most prior-art systems involving carrying a power over a non-power dedicated wiring (e.g. powerlines), the amount of power that can be carried is limited either due to safety regulations and limitations, ensuring minimum interference with the other signals carried over the same wires or due to the power dissipation in the wires. For example, power carried over telephone lines may not exceed 60VDC due to safety limitations, and power carried over coaxial wiring (e.g. CATV) may degrade its signal carrying characteristics.

Wireless system in general, and WLAN systems in particular are associated with mobile and handheld devices such as PDA (Personal Digital Assistant), cellular phone, remote-controller and laptop computers. Being battery operated, the power consumption of the wireless components is critical. As such, a lot of resources are allocated to make the wireless components consume very low power, and the power consumption of any wireless components is considered as one of its main features. This approach is described for example in Texas Instruments White Paper entitled “Low Power Advantage of 802.11a/g vs. 802.11b” which is incorporated herein by reference. Hence, the low power feature of the wireless components makes them well suitable to be used in any power over wiring scheme, and also in any non-local feeding scenarios.

An additional advantage of carrying power over the same wires carrying the OFDM signal relates to the superior characteristics of the OFDM signal. Known single carrier modulations use the whole spectrum for the whole data rates (single ‘bin’ approach), and as such are greatly susceptible to both white noise and single frequency noise. In contrast, OFDM uses multiple ‘bins’, each carrying part of the data, and hence is less impaired by either white or narrowband noise. Power supplies are known to be noisy, and in particular at specific frequencies, such as harmonies of the PWM frequency (in the case of PWM based supply). Furthermore, the wires connecting the wired medium to the power supply and to the loads also serve as antennas and receive noise from the environment. Since the OFDM is much more robust, the effects described are less severe, allowing better performance, and obviating the need for complex and expensive filters.

Furthermore, since the networks described above are used to serve wireless clients (STAs) which are battery operated and thus are operative even in the case of power outage, carrying power over the wiring allows for continuing network operation in such a case. The power is typically sourced from a central back-up power source (e.g. UPS—Uninterruptible Power Supply), and allows continuous operation of the network even in the case of power outage via the wiring medium.

A non-limiting example of an OFDM modem 160 capable of being power fed via the telephone wiring is shown in FIG. 16. OFDM modem 160 includes modem 30 (shown functionally in FIG. 3) and added power extraction and feeding functionalities. OFDM modem 160 connects to the telephone wiring via telephone connector 36, in a way similar to modem 30. A BPF 162, optimized to pass only the 50 KHz power signal, extracts the power signal and feeds AC/DC Power Supply 161, which converts to various DC levels usually required by the OFDM modem 30, such as 5 and 3.3 VDC. The non-power related signals (telephony, ADSL and OFDM baseband) are passed through BSF (Band Stop Filter) 163 (which may implement 50 KHz notch filter, for example) and to the wiring port of OFDM modem 30. The data and telephone ports of the OFDM modem 30 shown as 33 and 35 in FIG. 3 are represented as modem 160 data port 164 and telephone port 165, respectively. Hence, OFDM modem 160 implements all OFDM modem 30 functions, added to the capability of being powered by a power signal carried over the telephone wiring.

The BPF 162 and BSF 163 constitute the power/signal splitter/combiner 166. In the case wherein the power is carried in any other way, this function block 166 should be accordingly modified to split/combine the power and other signals carried over the wiring.

A network 170 employing AC power over telephone wiring is shown in FIG. 17, based on network 75 described above with reference to FIG. 6 b. OFDM modems 30 b and 60 a of network 75 are respectively substituted with telephone wiring AC powered modems 160 b and 160 a, including the same functionalities added to the capability of being powered via the telephone lines. The 50 KHz power signal is fed into the wiring via the 50 KHz AC power supply 171, coupled to the telephone wiring 62 via connector 64 c of outlet 63 c, through a BPF 162 to avoid interference with the other signals carried over the same wiring 62. OFDM modem 30 a is used connected to outlet 63 a, hence using local powering.

Powering Via Connected Appliance.

As explained above, several data interface standards also carry power over the interface. As a non-limiting example, in the case where the module is connected to USB host unit, the USB interface may feed the module. The same applies when the data port 33 is an Ethernet port implementing PoE technology as described above.

While the invention has been described with regard to a single power source, it will be appreciated that the invention equally applies to the case wherein multiple power sources are used either for redundancy or load sharing.

General.

While the invention has been described with regard to the configuration wherein OFDM signal is carried over telephone wiring (or any other utility or dedicated wiring LAN), it will be appreciated that the invention equally applies to any other spread spectrum signaling (using either DSSS or FHSS). As a non-limiting example, any multi-carrier modulation technique may be used such as DMT (Discrete MultiTone) and CDMA (Code Division Multiple Access). The term ‘OFDM modem’ used herein is to be considered as an example only, and not as limited to solely using OFDM based signal.

While the invention has been exampled above with regard to using standard IEEE 802.11g technology, signals and components, it will be appreciated that the invention equally applies to any other wireless based technology, using either single or multi carrier signals for implementing either spread spectrum or narrowband, using either unlicensed bands (such as ISM) or licensed spectrum. Such technology may be part of the IEEE 802.11 (such as IEEE 802.11b or IEEE 802.11a), ETSI HiperLAN/2 or any technology used for WLAN, home networking or PAN (Personal Area Network). One non-limiting example is using IEEE 802.11b based on CCK (Complementary Code Keying). Other non-limiting examples are BlueTooth™, ZigBee, UWB and HomeRF™. Furthermore, WAN (Wide Area Network) and other wireless technologies may be equally used, such as cellular technologies (e.g. GSM, GPRS, 2.5G, 3G, UMTS, DCS, PCS and CDMA) and Local Loop oriented technologies (WLL—Wireless Local Loop) such as WiMax, WCDMA and other Fixed Wireless technologies, including microwave based. Similarly, satellite based technologies and components may be equally used. While the technologies mentioned above are all standards-based, proprietary and non-standards technologies may be equally used according to present invention. Furthermore, the invention may equally apply to using technologies and components used in non-radio based through-the-air wireless systems such light (e.g. infrared) or audio (e.g. ultrasonic) based communication systems.

While the invention has been described with regard to the configuration wherein a single wireless oriented signal is carried over the wiring medium (such as utility or dedicated wiring LAN), it will be appreciated that the invention equally applies to the case wherein multiple such signal are carried using FDM. For example, additional IEEE802.11g signal may be added to graph 40, occupying the frequency band of 32-54 Mb/s, hence not overlapping the signals shown. Furthermore, different such signals may be combined, and thus not limited to the same wireless oriented signal.

While the invention has been described with regard to networks using the same wireless technology (such as IEEE802.11g) by all modems connected to the wired medium, it will be appreciated that the invention equally applies to other embodiments wherein different but interoperable signals are employed.

While the invention has been described with regard to embodiments using a complete wireless solution based on existing components, including wireless MAC 13 b, baseband processor 18 and converter 16, it will be appreciated that the invention equally applies to other embodiments wherein one or more of theses components are used. As a non-limiting example, the MAC 13 b may be substituted with a wired-dedicated MAC, still employing all physical layer components. Similarly, other physical layer components may be used, still using the powerful wireless MAC 13 b. Furthermore, while the wireless signal, either as baseband, IF or RF form, has been described as only being frequency shifted, additional processing may also apply to the standard wireless signals and components, such as amplitude/level handling such as amplification and attenuation and frequency handling such as filtering. Such processing may be warranted in order to better adapt to the wired medium, improve reliability or reduce costs.

While the invention has been described with regard to wireless signals and systems carrying digital data, it will be appreciated that the invention equally applies to other embodiments wherein the wireless signals (and system) are used to carry analog signals. One non-limiting example involves cordless telephony. Cordless telephones are known to carry telephone (and control) signals over the air using ISM bands. Applying the invention allows for carrying the signals over any wired medium in general and over a utility wiring in particular. In the case of carrying the signals over telephone wiring, the above advantages are apparent, such as enlarging the coverage. Furthermore, such configuration may allow carrying multiple telephone signals over a single telephone pair.

Those of skill in the art will understand that the various illustrative logical blocks, modules and circuits described in connection with the embodiments disclosed herein may be implemented in any number of ways including electronic hardware, computer software, or combinations of both. The various illustrative components, blocks, modules and circuits have been described generally in terms of their functionality. Whether the functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system Skilled artisans recognize the interchangeability of hardware and software under these circumstances, and how best to implement the described functionality for each particular application.

Although exemplary embodiments of the present invention have been described, this should not be construed to limit the scope of the appended claims. Those skilled in the art will understand that modifications may be made to the described embodiments. Moreover, to those skilled in the various arts, the invention itself herein will suggest solutions to other tasks and adaptations for other applications. It is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, reference being made to the appended claims rather than the foregoing description to indicate the scope of the invention.

PUBLIC NOTICE REGARDING THE SCOPE OF THE INVENTION AND CLAIMS

While the invention has been described in terms of preferred embodiments and generally associated methods, the inventor contemplates that alterations and permutations of the preferred embodiments and methods will become apparent to those skilled in the art upon a reading of the specification and a study of the drawings.

Accordingly, neither the above description of preferred exemplary embodiments nor the abstract defines or constrains the invention. Rather, the issued claims variously define the invention. Each variation of the invention is limited only by the recited limitations of its respective claim, and equivalents thereof, without limitation by other terms not present in the claim. In addition, aspects of the invention are particularly pointed out in the claims using terminology that the inventor regards as having its broadest reasonable interpretation; more specific interpretations of 35 U.S.C. section.112 (6) are only intended in those instances where the term “means” is actually recited. The words “comprising,” “including,” and “having” are intended as open-ended terminology, with the same meaning as if the phrase “at least” were appended after each instance thereof.

Claims (22)

1. A system carrying concurrently a LAN signal in a LAN frequency band and a radio frequency signal in a first intermediate frequency band different from and non-interfering with, the LAN frequency band over LAN wiring in a building, the system comprising:
a first device and a second device connected by the LAN wiring;
the first device including a high pass filter, connected to the LAN wiring and passing only signals in the first intermediate frequency band to a first signal frequency converter, the first signal frequency converter converting the radio frequency signal in the first intermediate frequency band received from the LAN wiring to a radio frequency band signal for transmission through an antenna to a wireless terminal and converting a radio frequency band signal received though the antenna from the wireless terminal to a first intermediate frequency band signal for transmission over the LAN wiring;
the first device further including a low pass filter connected to the LAN wiring and passing signals in the LAN frequency band to a first network device connected to the first device; and
the second device including a high pass filter, connected to the LAN wiring and a network interface adapted to the second device to an external network;
wherein the high pass filter passes only signals in the first intermediate frequency band between a processor and the LAN wiring and the processor converts the radio frequency signal in the first intermediate frequency band received from the LAN wiring to a network signal and converts a received network signal from the external network to a radio frequency signal in the first intermediate frequency band signal for transmission over the LAN wiring.
2. The system according to claim 1 wherein the LAN wiring carries a second radio frequency signal in a second intermediate frequency band, different from and non-interfering with the LAN frequency band and the first intermediate frequency band;
wherein the first device includes a second high pass filter, connected to the LAN wiring and passing only signals in the second intermediate frequency band to a third signal frequency converter, the third signal frequency converter converting the radio frequency signal in the second intermediate frequency band received from the LAN wiring to a radio frequency band signal for transmission through an antenna to a wireless terminal and converting a radio frequency band signal received through the antenna from the wireless terminal to a second intermediate frequency band signal for transmission over the LAN wiring; and
wherein the second device includes a second high pass filter, connected to the LAN wiring and passing only signals in the second intermediate frequency band to a fourth signal frequency converter, the fourth signal frequency converter converting the radio frequency signal in the second intermediate frequency band received from the LAN wiring to the radio frequency band signal for transmission through an antenna and converting a radio frequency band signal received from the antenna to a second intermediate frequency band signal for transmission over the LAN wiring.
3. The system according to claim 1 wherein the first device further includes a Tx/Rx switch connected between the antenna and the first signal frequency converter.
4. The system according to claim 1 wherein the first device further includes a radio frequency filter connected between the antenna and the first signal frequency converter.
5. The system according to claim 1 wherein the second device further includes line interface connected between the high pass filter and the processor.
6. The system according to claim 1 wherein the radio frequency band signal is a cellular telephone signal.
7. The system according to claim 6 wherein the cellular telephone signal is selected from the group including GSM, GPRS, 2.5G, 3G, UMTS, DCS, PCS, CDMA, WCDMA and WiMAX.
8. The system according to claim 1 wherein the radio frequency band signal is a wireless local area networking signal.
9. The system according to claim 1 wherein the radio frequency band signal is a wireless wide area network signal.
10. The system according to claim 1 wherein the LAN wiring carries a power signal and at least one of the first device and the second device is powered by the power signal.
11. The system according to claim 1 wherein the second device further includes a low pass filter connected to the LAN wiring and passing signals in the LAN frequency band to a second network device connected to the second device.
12. The system according to claim 1 wherein the second device further includes a media access control layer processor connected between the network interface and the processor.
13. The system according to claim 1 wherein the second device further includes:
an RF-IF converter and a second signal frequency converter;
the RF-IF converter being connected between the second signal frequency converter and the processor for converting the radio frequency signal received from the second signal frequency converter to an intermediate frequency band and converting an intermediate frequency band signal received from the processor to a radio frequency band signal; and
the second signal frequency converter connected between the RF-IF converter and the high pass filter for converting the radio frequency signal in the first intermediate frequency band received from the high pass filter to a radio frequency signal and converting a radio frequency signal received from the RF-IF converter to a radio frequency signal in the first intermediate frequency band signal for transmission over the LAN wiring.
14. The system according to claim 13 wherein the second device further includes a Tx/Rx switch connected between the RF-IF converter and the second signal frequency converter.
15. The system according to claim 13 wherein the second device further includes a radio frequency filter connected between the RF-IF converter and the second signal frequency converter.
16. The system according to claim 1 wherein the second device further includes:
a sharing device connecting the processor to the high pass filter and the an antenna; and
an RF-IF converter connected between the antenna and the processor for converting the radio frequency signal received from the antenna to an intermediate frequency band and converting an intermediate frequency band signal received from the processor to a radio frequency band signal.
17. The system according to claim 16 wherein the first device further includes line interface connected between the high pass filter and the sharing device.
18. The system according to claim 16 wherein the first device further includes a Tx/Rx switch connected between the antenna and the RF-IF converter.
19. The system according to claim 16 wherein the first device further includes a radio frequency filter connected between the antenna and the RF-IF converter.
20. The system according to claim 1 wherein the second device further includes:
a sharing device connecting the processor to the high pass filter and the an antenna;
an RF-IF converter connected between the sharing device and the processor for converting the radio frequency signal received from the antenna to an intermediate frequency band and converting an intermediate frequency band signal received from the processor to a radio frequency band signal; and
second signal frequency converter connected between the sharing device and the high pass filter for converting the radio frequency signal in the first intermediate frequency band received from the high pass filter to a radio frequency signal and converting a radio frequency signal received from the sharing device to a radio frequency signal in the first intermediate frequency band signal for transmission over the LAN wiring.
21. The system according to claim 20 wherein the first device further includes a Tx/Rx switch connected between the antenna and the sharing device.
22. The system according to claim 20 wherein the first device further includes a radio frequency filter connected between the antenna and the sharing device.
US12944964 2004-05-06 2010-11-12 System and method for carrying a wireless based signal over wiring Active 2025-06-13 US8325693B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IL161869 2004-05-06
IL16186904 2004-05-06
US11066442 US20050249245A1 (en) 2004-05-06 2005-02-28 System and method for carrying a wireless based signal over wiring
US12129278 US8325759B2 (en) 2004-05-06 2008-05-29 System and method for carrying a wireless based signal over wiring
US12944964 US8325693B2 (en) 2004-05-06 2010-11-12 System and method for carrying a wireless based signal over wiring

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12944964 US8325693B2 (en) 2004-05-06 2010-11-12 System and method for carrying a wireless based signal over wiring
US12954110 US9026036B2 (en) 2005-02-28 2010-11-24 Method and system for integrating an RF module into a digital network access point
US13664013 US20130051404A1 (en) 2004-05-06 2012-10-30 System and method for carrying a wireless based signal over wiring

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US12129278 Continuation US8325759B2 (en) 2004-05-06 2008-05-29 System and method for carrying a wireless based signal over wiring

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13664013 Division US20130051404A1 (en) 2004-05-06 2012-10-30 System and method for carrying a wireless based signal over wiring

Publications (2)

Publication Number Publication Date
US20110281530A1 true US20110281530A1 (en) 2011-11-17
US8325693B2 true US8325693B2 (en) 2012-12-04

Family

ID=34960527

Family Applications (4)

Application Number Title Priority Date Filing Date
US11066442 Abandoned US20050249245A1 (en) 2004-05-06 2005-02-28 System and method for carrying a wireless based signal over wiring
US12129278 Active 2026-03-16 US8325759B2 (en) 2004-05-06 2008-05-29 System and method for carrying a wireless based signal over wiring
US12944964 Active 2025-06-13 US8325693B2 (en) 2004-05-06 2010-11-12 System and method for carrying a wireless based signal over wiring
US13664013 Abandoned US20130051404A1 (en) 2004-05-06 2012-10-30 System and method for carrying a wireless based signal over wiring

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US11066442 Abandoned US20050249245A1 (en) 2004-05-06 2005-02-28 System and method for carrying a wireless based signal over wiring
US12129278 Active 2026-03-16 US8325759B2 (en) 2004-05-06 2008-05-29 System and method for carrying a wireless based signal over wiring

Family Applications After (1)

Application Number Title Priority Date Filing Date
US13664013 Abandoned US20130051404A1 (en) 2004-05-06 2012-10-30 System and method for carrying a wireless based signal over wiring

Country Status (8)

Country Link
US (4) US20050249245A1 (en)
EP (4) EP2326073A1 (en)
JP (1) JP4633790B2 (en)
KR (3) KR101413314B1 (en)
CN (1) CN1951097B (en)
CA (1) CA2565733C (en)
DE (1) DE602005013373D1 (en)
WO (1) WO2005109845A1 (en)

Cited By (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060218298A1 (en) * 2005-03-23 2006-09-28 Edward Knapp Methods and apparatus for using multiple wireless links with a wireless terminal
US9350557B2 (en) 2013-04-30 2016-05-24 Manolo Fabio Rivera Multipurpose wall outlet with USB ports
US9461707B1 (en) 2015-05-21 2016-10-04 Landis+Gyr Technologies, Llc Power-line network with multi-scheme communication
US9525210B2 (en) 2014-10-21 2016-12-20 At&T Intellectual Property I, L.P. Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9544006B2 (en) 2014-11-20 2017-01-10 At&T Intellectual Property I, L.P. Transmission device with mode division multiplexing and methods for use therewith
US9564947B2 (en) 2014-10-21 2017-02-07 At&T Intellectual Property I, L.P. Guided-wave transmission device with diversity and methods for use therewith
US9565596B2 (en) 2011-08-29 2017-02-07 Commscope Technologies Llc Configuring a distributed antenna system
US9577307B2 (en) 2014-10-21 2017-02-21 At&T Intellectual Property I, L.P. Guided-wave transmission device and methods for use therewith
US9596001B2 (en) 2014-10-21 2017-03-14 At&T Intellectual Property I, L.P. Apparatus for providing communication services and methods thereof
US9602176B2 (en) 2010-10-01 2017-03-21 Commscope Technologies Llc Distributed antenna system for MIMO signals
US9608740B2 (en) 2015-07-15 2017-03-28 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9608692B2 (en) 2015-06-11 2017-03-28 At&T Intellectual Property I, L.P. Repeater and methods for use therewith
US9615269B2 (en) 2014-10-02 2017-04-04 At&T Intellectual Property I, L.P. Method and apparatus that provides fault tolerance in a communication network
US9628854B2 (en) 2014-09-29 2017-04-18 At&T Intellectual Property I, L.P. Method and apparatus for distributing content in a communication network
US9628116B2 (en) 2015-07-14 2017-04-18 At&T Intellectual Property I, L.P. Apparatus and methods for transmitting wireless signals
US9640850B2 (en) 2015-06-25 2017-05-02 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium
US9654173B2 (en) 2014-11-20 2017-05-16 At&T Intellectual Property I, L.P. Apparatus for powering a communication device and methods thereof
US9653770B2 (en) 2014-10-21 2017-05-16 At&T Intellectual Property I, L.P. Guided wave coupler, coupling module and methods for use therewith
US9661505B2 (en) 2013-11-06 2017-05-23 At&T Intellectual Property I, L.P. Surface-wave communications and methods thereof
US9667317B2 (en) 2015-06-15 2017-05-30 At&T Intellectual Property I, L.P. Method and apparatus for providing security using network traffic adjustments
US9685992B2 (en) 2014-10-03 2017-06-20 At&T Intellectual Property I, L.P. Circuit panel network and methods thereof
US9692101B2 (en) 2014-08-26 2017-06-27 At&T Intellectual Property I, L.P. Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire
US9699785B2 (en) 2012-12-05 2017-07-04 At&T Intellectual Property I, L.P. Backhaul link for distributed antenna system
US9705610B2 (en) 2014-10-21 2017-07-11 At&T Intellectual Property I, L.P. Transmission device with impairment compensation and methods for use therewith
US9705561B2 (en) 2015-04-24 2017-07-11 At&T Intellectual Property I, L.P. Directional coupling device and methods for use therewith
US9705571B2 (en) 2015-09-16 2017-07-11 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system
US9712350B2 (en) 2014-11-20 2017-07-18 At&T Intellectual Property I, L.P. Transmission device with channel equalization and control and methods for use therewith
US9722318B2 (en) 2015-07-14 2017-08-01 At&T Intellectual Property I, L.P. Method and apparatus for coupling an antenna to a device
US9729197B2 (en) 2015-10-01 2017-08-08 At&T Intellectual Property I, L.P. Method and apparatus for communicating network management traffic over a network
US9735833B2 (en) 2015-07-31 2017-08-15 At&T Intellectual Property I, L.P. Method and apparatus for communications management in a neighborhood network
US9742462B2 (en) 2014-12-04 2017-08-22 At&T Intellectual Property I, L.P. Transmission medium and communication interfaces and methods for use therewith
US9749053B2 (en) 2015-07-23 2017-08-29 At&T Intellectual Property I, L.P. Node device, repeater and methods for use therewith
US9748626B2 (en) 2015-05-14 2017-08-29 At&T Intellectual Property I, L.P. Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium
US9749013B2 (en) 2015-03-17 2017-08-29 At&T Intellectual Property I, L.P. Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium
US9762289B2 (en) 2014-10-14 2017-09-12 At&T Intellectual Property I, L.P. Method and apparatus for transmitting or receiving signals in a transportation system
US9769020B2 (en) 2014-10-21 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for responding to events affecting communications in a communication network
US9769128B2 (en) 2015-09-28 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for encryption of communications over a network
US9768833B2 (en) 2014-09-15 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves
US9780834B2 (en) 2014-10-21 2017-10-03 At&T Intellectual Property I, L.P. Method and apparatus for transmitting electromagnetic waves
US9787385B2 (en) 2009-12-09 2017-10-10 Andrew Wireless Systems Gmbh Distributed antenna system for MIMO signals
US9787412B2 (en) 2015-06-25 2017-10-10 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a fundamental wave mode on a transmission medium
US9793954B2 (en) 2015-04-28 2017-10-17 At&T Intellectual Property I, L.P. Magnetic coupling device and methods for use therewith
US9793951B2 (en) 2015-07-15 2017-10-17 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9793955B2 (en) 2015-04-24 2017-10-17 At&T Intellectual Property I, Lp Passive electrical coupling device and methods for use therewith
US9794003B2 (en) 2013-12-10 2017-10-17 At&T Intellectual Property I, L.P. Quasi-optical coupler
US9800327B2 (en) 2014-11-20 2017-10-24 At&T Intellectual Property I, L.P. Apparatus for controlling operations of a communication device and methods thereof
US9820146B2 (en) 2015-06-12 2017-11-14 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9838078B2 (en) 2015-07-31 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for exchanging communication signals
US9836957B2 (en) 2015-07-14 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for communicating with premises equipment
US9838896B1 (en) 2016-12-09 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for assessing network coverage
US9847566B2 (en) 2015-07-14 2017-12-19 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a field of a signal to mitigate interference
US9847850B2 (en) 2014-10-14 2017-12-19 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a mode of communication in a communication network
US9853342B2 (en) 2015-07-14 2017-12-26 At&T Intellectual Property I, L.P. Dielectric transmission medium connector and methods for use therewith
US9860075B1 (en) 2016-08-26 2018-01-02 At&T Intellectual Property I, L.P. Method and communication node for broadband distribution
US9866276B2 (en) 2014-10-10 2018-01-09 At&T Intellectual Property I, L.P. Method and apparatus for arranging communication sessions in a communication system
US9865911B2 (en) 2015-06-25 2018-01-09 At&T Intellectual Property I, L.P. Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium
US9866309B2 (en) 2015-06-03 2018-01-09 At&T Intellectual Property I, Lp Host node device and methods for use therewith
US9871283B2 (en) 2015-07-23 2018-01-16 At&T Intellectual Property I, Lp Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration
US9871282B2 (en) 2015-05-14 2018-01-16 At&T Intellectual Property I, L.P. At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric
US9876605B1 (en) 2016-10-21 2018-01-23 At&T Intellectual Property I, L.P. Launcher and coupling system to support desired guided wave mode
US9876570B2 (en) 2015-02-20 2018-01-23 At&T Intellectual Property I, Lp Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9876264B2 (en) 2015-10-02 2018-01-23 At&T Intellectual Property I, Lp Communication system, guided wave switch and methods for use therewith
US9882257B2 (en) 2015-07-14 2018-01-30 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9882277B2 (en) 2015-10-02 2018-01-30 At&T Intellectual Property I, Lp Communication device and antenna assembly with actuated gimbal mount
US9887447B2 (en) 2015-05-14 2018-02-06 At&T Intellectual Property I, L.P. Transmission medium having multiple cores and methods for use therewith
US9893795B1 (en) 2016-12-07 2018-02-13 At&T Intellectual Property I, Lp Method and repeater for broadband distribution
US9906269B2 (en) 2014-09-17 2018-02-27 At&T Intellectual Property I, L.P. Monitoring and mitigating conditions in a communication network
US9904535B2 (en) 2015-09-14 2018-02-27 At&T Intellectual Property I, L.P. Method and apparatus for distributing software
US9912381B2 (en) 2015-06-03 2018-03-06 At&T Intellectual Property I, Lp Network termination and methods for use therewith
US9912027B2 (en) 2015-07-23 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for exchanging communication signals
US9913139B2 (en) 2015-06-09 2018-03-06 At&T Intellectual Property I, L.P. Signal fingerprinting for authentication of communicating devices
US9912419B1 (en) 2016-08-24 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for managing a fault in a distributed antenna system
US9911020B1 (en) 2016-12-08 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for tracking via a radio frequency identification device
US9917341B2 (en) 2015-05-27 2018-03-13 At&T Intellectual Property I, L.P. Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves
US9927517B1 (en) 2016-12-06 2018-03-27 At&T Intellectual Property I, L.P. Apparatus and methods for sensing rainfall
US9930668B2 (en) 2013-05-31 2018-03-27 At&T Intellectual Property I, L.P. Remote distributed antenna system
US9948354B2 (en) 2015-04-28 2018-04-17 At&T Intellectual Property I, L.P. Magnetic coupling device with reflective plate and methods for use therewith
US9948333B2 (en) 2015-07-23 2018-04-17 At&T Intellectual Property I, L.P. Method and apparatus for wireless communications to mitigate interference
US9954287B2 (en) 2014-11-20 2018-04-24 At&T Intellectual Property I, L.P. Apparatus for converting wireless signals and electromagnetic waves and methods thereof
US9967173B2 (en) 2015-07-31 2018-05-08 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9973416B2 (en) 2017-02-17 2018-05-15 At&T Intellectual Property I, L.P. Method and apparatus that provides fault tolerance in a communication network

Families Citing this family (134)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8135842B1 (en) * 1999-08-16 2012-03-13 Nvidia Corporation Internet jack
US7176786B2 (en) * 2000-01-20 2007-02-13 Current Technologies, Llc Method of isolating data in a power line communications network
US6842459B1 (en) 2000-04-19 2005-01-11 Serconet Ltd. Network combining wired and non-wired segments
US7369485B2 (en) * 2002-08-19 2008-05-06 Conexant, Inc. Wireless receiver for sorting packets
US7098773B2 (en) * 2003-07-03 2006-08-29 Current Technologies, Llc Power line communication system and method of operating the same
KR101413314B1 (en) 2004-05-06 2014-07-03 모바일액세스 네트웍스 리미티드 System and method for carrying a wireless based signal over wiring
US20060188266A1 (en) * 2004-12-28 2006-08-24 Optical Solutions, Inc. Optical network terminal with wide input range power converter
US7689175B2 (en) * 2005-01-21 2010-03-30 Sony Corporation Configurable frequency band elimination for powerline network
US7521943B2 (en) * 2005-01-23 2009-04-21 Serconet, Ltd. Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance
US20070142024A1 (en) * 2005-12-08 2007-06-21 Clayton Richard M Wireless adaptor for facilitating hands-free wireless communication functionality
US7856032B2 (en) 2005-04-04 2010-12-21 Current Technologies, Llc Multi-function modem device
US8228924B2 (en) 2005-05-26 2012-07-24 Sony Corporation AC PLC to DC PLC transceiver
US7508834B2 (en) * 2005-06-21 2009-03-24 Current Technologies, Llc Wireless link for power line communications system
US7259657B2 (en) * 2005-06-21 2007-08-21 Current Technologies, Llc Multi-subnet power line communications system and method
DE602005002050T2 (en) * 2005-07-05 2008-05-15 Alcatel Lucent A method for transmitting signals in a radio network
US7756942B2 (en) * 2005-07-21 2010-07-13 Sony Corporation System and method for establishing master component in multiple home networks
US7307510B2 (en) * 2005-09-02 2007-12-11 Current Technologies, Llc Power meter bypass device and method for a power line communications system
US20070054622A1 (en) * 2005-09-02 2007-03-08 Berkman William H Hybrid power line wireless communication system
US8406239B2 (en) * 2005-10-03 2013-03-26 Broadcom Corporation Multi-wideband communications over multiple mediums
US8213895B2 (en) * 2005-10-03 2012-07-03 Broadcom Europe Limited Multi-wideband communications over multiple mediums within a network
US7970374B2 (en) * 2005-10-03 2011-06-28 Broadcom Corporation Multi-wideband communications over power lines
EP1770870A1 (en) 2005-10-03 2007-04-04 Gigle Semiconductors Limited Powerline communication device and method
US20070076666A1 (en) * 2005-10-03 2007-04-05 Riveiro Juan C Multi-Wideband Communications over Power Lines
US7551693B2 (en) * 2005-11-29 2009-06-23 Coppergate Communications Ltd. High-frequency HomePNA
US7813451B2 (en) * 2006-01-11 2010-10-12 Mobileaccess Networks Ltd. Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting
JP4712567B2 (en) * 2006-01-26 2011-06-29 ホーチキ株式会社 Announcement broadcasting system and broadcasting equipment for the
US7852207B2 (en) 2006-02-14 2010-12-14 Current Technologies, Llc Method for establishing power line communication link
JP4629592B2 (en) * 2006-02-14 2011-02-09 九州電力株式会社 Multiplex transmission system
US7923855B2 (en) * 2006-02-17 2011-04-12 Calix, Inc. Communication between network interface device and subscriber devices via power supply lines
DE102006011379B4 (en) * 2006-03-09 2012-06-28 Deutsches Zentrum für Luft- und Raumfahrt e.V. A process for the spectral side lobe suppression in OFDM-based transmission systems,
US20070217414A1 (en) * 2006-03-14 2007-09-20 Berkman William H System and method for multicasting over power lines
US7596079B2 (en) * 2006-05-31 2009-09-29 Current Technologies, Llc System and method for communicating in a multi-unit structure
US7602695B2 (en) * 2006-05-31 2009-10-13 Current Technologies, Llc System and method for communicating in a multi-unit structure
KR101360905B1 (en) 2006-06-19 2014-02-11 제이디에스 유니페이즈 코포레이션 Home network testing
US7860146B2 (en) * 2006-07-06 2010-12-28 Gigle Networks, Inc. Adaptative multi-carrier code division multiple access
US8885814B2 (en) 2006-07-25 2014-11-11 Broadcom Europe Limited Feedback impedance control for driving a signal
US20080039089A1 (en) * 2006-08-11 2008-02-14 Berkman William H System and Method for Providing Dynamically Configurable Wireless Communication Network
US7782975B2 (en) * 2006-09-05 2010-08-24 Xg Technology, Inc. Pulse train carrier-less modulator using SAW filters
EP2078339B1 (en) * 2006-10-05 2018-01-31 Cohda Wireless Pty Ltd Improving receiver performance in a communication network
US7808985B2 (en) * 2006-11-21 2010-10-05 Gigle Networks Sl Network repeater
US8873585B2 (en) 2006-12-19 2014-10-28 Corning Optical Communications Wireless Ltd Distributed antenna system for MIMO technologies
WO2008103374A3 (en) 2007-02-19 2008-10-09 Mobile Access Networks Ltd Method and system for improving uplink performance
US20080205417A1 (en) * 2007-02-26 2008-08-28 Huamin Li Method and apparatus for bridging wired and wireless communication networks
US8160509B2 (en) * 2007-04-06 2012-04-17 Qualcomm Atheros, Inc. Apparatus for coupling a wireless communication device to a physical device
US7894329B1 (en) * 2007-04-24 2011-02-22 At&T Intellectual Property Ii, L.P. Method and system for providing broadband access to a data network via gas pipes
US20100054746A1 (en) 2007-07-24 2010-03-04 Eric Raymond Logan Multi-port accumulator for radio-over-fiber (RoF) wireless picocellular systems
US20090067361A1 (en) * 2007-09-08 2009-03-12 Califano Joseph N Cellular Phone Signal Enhancement Apparatus
US8175459B2 (en) 2007-10-12 2012-05-08 Corning Cable Systems Llc Hybrid wireless/wired RoF transponder and hybrid RoF communication system using same
WO2009053910A3 (en) 2007-10-22 2009-12-30 Mobileaccess Networks Ltd. Communication system using low bandwidth wires
US8644844B2 (en) 2007-12-20 2014-02-04 Corning Mobileaccess Ltd. Extending outdoor location based services and applications into enclosed areas
DK2236000T3 (en) * 2008-01-22 2015-12-07 Savox Comm Oy Ab Ltd Device and method for joining an ad hoc communication network with a permanent communication network via a half-duplex communication link
US8311137B1 (en) 2008-01-24 2012-11-13 Marvell International Ltd. Method for DC offset removal in OFDM systems
US20090253425A1 (en) * 2008-04-03 2009-10-08 Shmuel Goldshtein Method and system for reducing the radiation within cells of a cellular network
US8175649B2 (en) 2008-06-20 2012-05-08 Corning Mobileaccess Ltd Method and system for real time control of an active antenna over a distributed antenna system
US7956689B2 (en) * 2008-10-13 2011-06-07 Broadcom Corporation Programmable gain amplifier and transconductance compensation system
US7795973B2 (en) 2008-10-13 2010-09-14 Gigle Networks Ltd. Programmable gain amplifier
US8285227B2 (en) * 2008-12-31 2012-10-09 Elektrobit System Test Oy Communication between transmitter and receiver
US20100186234A1 (en) 2009-01-28 2010-07-29 Yehuda Binder Electric shaver with imaging capability
US9673904B2 (en) 2009-02-03 2017-06-06 Corning Optical Communications LLC Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof
CN102369678B (en) 2009-02-03 2015-08-19 康宁光缆系统有限责任公司 Distributed antenna system associated optical fiber, optical fiber-based calibration component for the distributed antenna system, based on component
CN102232191B (en) 2009-02-08 2015-07-08 康宁移动接入有限公司 Communication system using cables carrying Ethernet signals
JP5256426B2 (en) * 2009-02-13 2013-08-07 ネッツエスアイ東洋株式会社 Power line communication apparatus
FR2943476B1 (en) * 2009-03-18 2011-04-15 Sagem Comm Method and one of the interference reduction means between a carrier current signal and a signal type vdsl
US8532138B2 (en) * 2009-03-27 2013-09-10 Mstar Semiconductor, Inc. WWAN to ethernet converter and communication system thereof
US20100295782A1 (en) 2009-05-21 2010-11-25 Yehuda Binder System and method for control based on face ore hand gesture detection
FR2946474B1 (en) * 2009-06-05 2012-08-31 Sagem Comm powerline adapter INTEGRATED
US9590733B2 (en) 2009-07-24 2017-03-07 Corning Optical Communications LLC Location tracking using fiber optic array cables and related systems and methods
US20110153087A1 (en) * 2009-07-27 2011-06-23 Acciona Solar Power, Inc. Solar power plant with virtual sun tracking
US8548330B2 (en) 2009-07-31 2013-10-01 Corning Cable Systems Llc Sectorization in distributed antenna systems, and related components and methods
US8570914B2 (en) 2010-08-09 2013-10-29 Corning Cable Systems Llc Apparatuses, systems, and methods for determining location of a mobile device(s) in a distributed antenna system(s)
US8280259B2 (en) 2009-11-13 2012-10-02 Corning Cable Systems Llc Radio-over-fiber (RoF) system for protocol-independent wired and/or wireless communication
CN102859871B (en) * 2009-11-25 2015-10-14 康宁移动接入有限公司 Rf module for integrated digital network access point to a method and system
US8275265B2 (en) 2010-02-15 2012-09-25 Corning Cable Systems Llc Dynamic cell bonding (DCB) for radio-over-fiber (RoF)-based networks and communication systems and related methods
JP5638095B2 (en) * 2010-03-10 2014-12-10 ナショナル セミコンダクター コーポレーションNational Semiconductor Corporation Data signal transceiver circuit to provide simultaneous two-way communication via a common conductor pair
EP2553839A1 (en) 2010-03-31 2013-02-06 Corning Cable Systems LLC Localization services in optical fiber-based distributed communications components and systems, and related methods
US20110268446A1 (en) 2010-05-02 2011-11-03 Cune William P Providing digital data services in optical fiber-based distributed radio frequency (rf) communications systems, and related components and methods
US9525488B2 (en) 2010-05-02 2016-12-20 Corning Optical Communications LLC Digital data services and/or power distribution in optical fiber-based distributed communications systems providing digital data and radio frequency (RF) communications services, and related components and methods
EP2606707A1 (en) 2010-08-16 2013-06-26 Corning Cable Systems LLC Remote antenna clusters and related systems, components, and methods supporting digital data signal propagation between remote antenna units
JP5150695B2 (en) 2010-09-28 2013-02-20 株式会社東芝 Communication device, start node and system
US9252874B2 (en) 2010-10-13 2016-02-02 Ccs Technology, Inc Power management for remote antenna units in distributed antenna systems
US9160449B2 (en) 2010-10-13 2015-10-13 Ccs Technology, Inc. Local power management for remote antenna units in distributed antenna systems
WO2012071367A1 (en) 2010-11-24 2012-05-31 Corning Cable Systems Llc Power distribution module(s) capable of hot connection and/or disconnection for distributed antenna systems, and related power units, components, and methods
WO2012115843A1 (en) 2011-02-21 2012-08-30 Corning Cable Systems Llc Providing digital data services as electrical signals and radio-frequency (rf) communications over optical fiber in distributed communications systems, and related components and methods
CN103548290B (en) 2011-04-29 2016-08-31 康宁光缆系统有限责任公司 Distributed antenna system determines the propagation delay of communications and related components, systems and methods
CN103609146B (en) 2011-04-29 2017-05-31 康宁光缆系统有限责任公司 For increasing the distributed antenna system in a radio frequency (rf) power systems, methods and apparatus
KR20130078630A (en) * 2011-12-30 2013-07-10 한국전자통신연구원 Wireed/wireless converged mac adaptor and method for transmitting frame using wireed/wireless converged mac adaptor
US9231657B2 (en) * 2012-01-13 2016-01-05 Texas Instruments Incorporated Adaptive sub-band algorithm for point-to-point communication in PLC networks
EP2829152A2 (en) 2012-03-23 2015-01-28 Corning Optical Communications Wireless Ltd. Radio-frequency integrated circuit (rfic) chip(s) for providing distributed antenna system functionalities, and related components, systems, and methods
JP5800745B2 (en) * 2012-03-29 2015-10-28 三菱電機株式会社 Helicopter satellite communication system, a communication apparatus, communication method, and communication program
WO2013148986A1 (en) 2012-03-30 2013-10-03 Corning Cable Systems Llc Reducing location-dependent interference in distributed antenna systems operating in multiple-input, multiple-output (mimo) configuration, and related components, systems, and methods
US9781553B2 (en) 2012-04-24 2017-10-03 Corning Optical Communications LLC Location based services in a distributed communication system, and related components and methods
WO2013181247A1 (en) 2012-05-29 2013-12-05 Corning Cable Systems Llc Ultrasound-based localization of client devices with inertial navigation supplement in distributed communication systems and related devices and methods
CN102740035A (en) * 2012-06-11 2012-10-17 Tcl集团股份有限公司 Multimedia peripheral managing terminal and multimedia playing system
US9154222B2 (en) 2012-07-31 2015-10-06 Corning Optical Communications LLC Cooling system control in distributed antenna systems
EP2883416A1 (en) 2012-08-07 2015-06-17 Corning Optical Communications Wireless Ltd. Distribution of time-division multiplexed (tdm) management services in a distributed antenna system, and related components, systems, and methods
US9455784B2 (en) 2012-10-31 2016-09-27 Corning Optical Communications Wireless Ltd Deployable wireless infrastructures and methods of deploying wireless infrastructures
KR101478104B1 (en) * 2012-11-29 2014-12-31 서울과학기술대학교 산학협력단 The apparatus of control a digital signage of led bulletin board in ultra wide band
CN105308876A (en) 2012-11-29 2016-02-03 康宁光电通信有限责任公司 Hybrid intra-cell / inter-cell remote unit antenna bonding in multiple-input, multiple-output (MIMO) distributed antenna systems (DAS)
US9647758B2 (en) 2012-11-30 2017-05-09 Corning Optical Communications Wireless Ltd Cabling connectivity monitoring and verification
US9158864B2 (en) 2012-12-21 2015-10-13 Corning Optical Communications Wireless Ltd Systems, methods, and devices for documenting a location of installed equipment
US9525442B2 (en) * 2013-02-15 2016-12-20 Sony Corporation OFDM transmitter comprising a pre-distortion unit, an OFDM modulator and a filter
US9497706B2 (en) 2013-02-20 2016-11-15 Corning Optical Communications Wireless Ltd Power management in distributed antenna systems (DASs), and related components, systems, and methods
JP6089974B2 (en) * 2013-05-30 2017-03-08 株式会社デンソー Power line communication systems, the master and slave
CN105452951A (en) 2013-06-12 2016-03-30 康宁光电通信无线公司 Voltage controlled optical directional coupler
US9635324B2 (en) 2013-07-19 2017-04-25 Antronix Inc. Integrated coax/ethernet distribution system
US9247543B2 (en) 2013-07-23 2016-01-26 Corning Optical Communications Wireless Ltd Monitoring non-supported wireless spectrum within coverage areas of distributed antenna systems (DASs)
US9661781B2 (en) 2013-07-31 2017-05-23 Corning Optical Communications Wireless Ltd Remote units for distributed communication systems and related installation methods and apparatuses
US9385810B2 (en) 2013-09-30 2016-07-05 Corning Optical Communications Wireless Ltd Connection mapping in distributed communication systems
WO2015063758A1 (en) 2013-10-28 2015-05-07 Corning Optical Communications Wireless Ltd. Unified optical fiber-based distributed antenna systems (dass) for supporting small cell communications deployment from multiple small cell service providers, and related devices and methods
US9385562B2 (en) * 2013-12-19 2016-07-05 Btu Research Llc System and method for supplying uninterruptible power to a PoE device
US9178635B2 (en) 2014-01-03 2015-11-03 Corning Optical Communications Wireless Ltd Separation of communication signal sub-bands in distributed antenna systems (DASs) to reduce interference
DE102014103380A1 (en) * 2014-03-13 2015-09-17 Phoenix Contact Gmbh & Co. Kg Connection adapter for transmitting signals to a programmable logic controller
US9775123B2 (en) 2014-03-28 2017-09-26 Corning Optical Communications Wireless Ltd. Individualized gain control of uplink paths in remote units in a distributed antenna system (DAS) based on individual remote unit contribution to combined uplink power
CN105025323A (en) * 2014-04-15 2015-11-04 宏正自动科技股份有限公司 Video transmission system
US9357551B2 (en) 2014-05-30 2016-05-31 Corning Optical Communications Wireless Ltd Systems and methods for simultaneous sampling of serial digital data streams from multiple analog-to-digital converters (ADCS), including in distributed antenna systems
US9509133B2 (en) 2014-06-27 2016-11-29 Corning Optical Communications Wireless Ltd Protection of distributed antenna systems
CN104168571B (en) * 2014-07-09 2017-12-15 天津工业大学 Immune multi-objective optimization of spectrum allocation method based Cognitive Mesh Networks
US9525472B2 (en) 2014-07-30 2016-12-20 Corning Incorporated Reducing location-dependent destructive interference in distributed antenna systems (DASS) operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods
US9730228B2 (en) 2014-08-29 2017-08-08 Corning Optical Communications Wireless Ltd Individualized gain control of remote uplink band paths in a remote unit in a distributed antenna system (DAS), based on combined uplink power level in the remote unit
US9653861B2 (en) 2014-09-17 2017-05-16 Corning Optical Communications Wireless Ltd Interconnection of hardware components
US9602210B2 (en) 2014-09-24 2017-03-21 Corning Optical Communications Wireless Ltd Flexible head-end chassis supporting automatic identification and interconnection of radio interface modules and optical interface modules in an optical fiber-based distributed antenna system (DAS)
US9434316B2 (en) * 2014-09-24 2016-09-06 Philip Maeda Vehicle rear view camera connecting cable
US9184960B1 (en) 2014-09-25 2015-11-10 Corning Optical Communications Wireless Ltd Frequency shifting a communications signal(s) in a multi-frequency distributed antenna system (DAS) to avoid or reduce frequency interference
US9420542B2 (en) 2014-09-25 2016-08-16 Corning Optical Communications Wireless Ltd System-wide uplink band gain control in a distributed antenna system (DAS), based on per band gain control of remote uplink paths in remote units
US9853676B2 (en) 2014-09-30 2017-12-26 Apple Inc. Alternative routing of wireless data onto power supply
US9729267B2 (en) 2014-12-11 2017-08-08 Corning Optical Communications Wireless Ltd Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting
US20160173301A1 (en) * 2014-12-11 2016-06-16 Intel Corporation Modulating communications between platforms onto power delivery rails
US20160249365A1 (en) 2015-02-19 2016-08-25 Corning Optical Communications Wireless Ltd. Offsetting unwanted downlink interference signals in an uplink path in a distributed antenna system (das)
US9785175B2 (en) 2015-03-27 2017-10-10 Corning Optical Communications Wireless, Ltd. Combining power from electrically isolated power paths for powering remote units in a distributed antenna system(s) (DASs)
US9787400B2 (en) * 2015-04-08 2017-10-10 Corning Optical Communications LLC Fiber-wireless system and methods for simplified and flexible FTTX deployment and installation
US9681313B2 (en) 2015-04-15 2017-06-13 Corning Optical Communications Wireless Ltd Optimizing remote antenna unit performance using an alternative data channel
US9948349B2 (en) 2015-07-17 2018-04-17 Corning Optical Communications Wireless Ltd IOT automation and data collection system
US9935605B2 (en) * 2015-10-08 2018-04-03 Intermec Ip Corp. Systems and methods for powering and communicating with wireless sensor devices using building electrical wiring
US9648580B1 (en) 2016-03-23 2017-05-09 Corning Optical Communications Wireless Ltd Identifying remote units in a wireless distribution system (WDS) based on assigned unique temporal delay patterns

Citations (375)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092709A (en) 1935-11-19 1937-09-07 Hazeltine Corp Band-pass filter
US2298435A (en) 1940-11-26 1942-10-13 Rca Corp Radio relaying
US2411786A (en) 1944-08-11 1946-11-26 Farnsworth Television & Radio Communications system
US2613285A (en) 1946-08-16 1952-10-07 Farnsworth Res Corp Balanced input high-frequency amplifier
US2671850A (en) 1951-02-07 1954-03-09 Pierre C Marcou Radio relaying system
US2747083A (en) 1950-06-07 1956-05-22 Radio Patents Company Frequency-modulated high-frequency system
US2964623A (en) 1958-02-11 1960-12-13 Zenith Radio Corp Receiver having two input sources and respective tuning means, one of which, when selected, grounds the non-used source for both incoming interference and outgoing radiation signals
US2986723A (en) 1960-02-26 1961-05-30 Bell Telephone Labor Inc Synchronization in a system of interconnected units
US3072899A (en) 1960-02-15 1963-01-08 Gen Precision Inc Remote interrogator-responder signal-ling system communications channel apparatus
US3274339A (en) 1961-05-10 1966-09-20 Int Standard Electric Corp Time division multiplex transmission systems
US3656112A (en) 1969-03-14 1972-04-11 Constellation Science And Tech Utility meter remote automatic reading system
US3699250A (en) 1965-01-11 1972-10-17 Bunting Sterisystems Inc Process and signal distributing system and apparatus used therein
US4013840A (en) 1972-05-15 1977-03-22 Teleplex, Inc. Tdm and fdm telephone communication
US4049914A (en) 1976-08-30 1977-09-20 Rockwell International Corporation Frequency division multiplex voice communication apparatus with hierarchy of stations
US4063173A (en) 1976-04-01 1977-12-13 Motorola, Inc. Dual mode receiver
US4186347A (en) 1978-10-31 1980-01-29 Nasa Radio frequency arraying method for receivers
US4199761A (en) 1978-08-02 1980-04-22 Westinghouse Electric Corp. Multichannel radio communication system for automated power line distribution networks
US4200862A (en) 1977-01-07 1980-04-29 Pico Electronics Limited Appliance control
US4205270A (en) 1977-06-30 1980-05-27 Pioneer Electronic Corporation Station selection indicating device
US4417279A (en) 1981-02-16 1983-11-22 Hitachi, Ltd. FM Television signal receiving circuit
US4449246A (en) 1980-05-02 1984-05-15 Harris Corporation Orderwire communication system
US4456925A (en) 1982-10-04 1984-06-26 Zenith Radio Corporation Television/telephone system with automatic dialing
US4462113A (en) 1982-07-06 1984-07-24 Iwata Electric Co., Ltd. Cordless transmitting and receiving apparatus
US4467140A (en) 1981-05-01 1984-08-21 Masco Corporation Of Indiana Microprocessor-based cordless telephone system
US4468538A (en) 1982-12-16 1984-08-28 Gte Automatic Electric Inc. Wireless telephone system with high level dial pulse signalling
US4476574A (en) 1980-09-17 1984-10-09 The United States Of America As Represented By The United States Department Of Energy Radio frequency communication system utilizing radiating transmission lines
US4500976A (en) 1982-06-07 1985-02-19 Phillips Petroleum Company Seismic exploration
US4509211A (en) 1983-05-16 1985-04-02 Xantech Corporation Infrared extension system
US4528519A (en) 1983-01-12 1985-07-09 Ncr Corporation Automatic gain control
US4556988A (en) 1982-09-27 1985-12-03 Alps. Electric Co., Ltd. Indoor unit of receiver for broadcasting satellite
US4706274A (en) 1984-05-11 1987-11-10 Southwestern Bell Telecommunications, Inc. Cordless telephone system
US4718108A (en) 1986-05-19 1988-01-05 Motorola, Inc. Improved multiple site communication system
US4746809A (en) 1986-10-30 1988-05-24 Pittway Corporation AC power line signaling system
US4777652A (en) 1982-07-27 1988-10-11 A.R.F. Products Radio communication systems for underground mines
US4850009A (en) 1986-05-12 1989-07-18 Clinicom Incorporated Portable handheld terminal including optical bar code reader and electromagnetic transceiver means for interactive wireless communication with a base communications station
US4856085A (en) 1986-03-21 1989-08-08 U.S. Philips Corporation FM receiver with improved adjacent-channel rejection
US4864588A (en) 1987-02-11 1989-09-05 Hillier Technologies Limited Partnership Remote control system, components and methods
US4866757A (en) 1986-10-22 1989-09-12 Nilssen Ole K Combined telephone and power distribution system
EP0342858A2 (en) 1988-05-13 1989-11-23 Shimizu Construction Co., Ltd. System for re-emitting electromagnetic waves received from outside within an electromagnetic shielded space
US4885803A (en) 1987-03-17 1989-12-05 Lawrence W. Hermann System and method for controlling a plurality of electronic entertainment devices
US4901368A (en) 1987-10-19 1990-02-13 American Telephone And Telegraph Company Frequency translation correction scheme for satellite communication system
EP0355328A2 (en) 1988-08-25 1990-02-28 ANT Nachrichtentechnik GmbH Space diversity receiving circuit
US4916460A (en) 1988-01-29 1990-04-10 Decibel Products, Incorporated Distributed antenna system
US4918690A (en) 1987-11-10 1990-04-17 Echelon Systems Corp. Network and intelligent cell for providing sensing, bidirectional communications and control
US4941200A (en) 1987-08-03 1990-07-10 Orion Industries, Inc. Booster
US4941207A (en) 1984-05-01 1990-07-10 Nihon Musen Kabushiki Kaisha Structure for wireless communication in an electromagnetically shielded building
US4959862A (en) 1988-04-28 1990-09-25 Catel Telecommunications, Inc. Active multichannel video processing hub for optimum transition from fiber to coax
US4972505A (en) 1988-12-06 1990-11-20 Isberg Reuben A Tunnel distributed cable antenna system with signal top coupling approximately same radiated energy
US4980665A (en) 1987-05-22 1990-12-25 Recoton Corporation Remote control repeater
US4999613A (en) 1987-04-21 1991-03-12 Guardian Technologies, Inc. Remote confinement system
US5046135A (en) 1989-11-30 1991-09-03 John E. Chance & Associates Method and apparatus for frequency stabilization of a down converter
US5045948A (en) 1987-09-15 1991-09-03 Donald A. Streck Television local wireless transmission and control
US5109222A (en) 1989-03-27 1992-04-28 John Welty Remote control system for control of electrically operable equipment in people occupiable structures
US5109532A (en) 1990-01-30 1992-04-28 General Instrument Corporation Elimination of phase noise and drift incident to up and down conversion in a broadcast communication system
US5115463A (en) 1990-06-25 1992-05-19 David Moldavsky Extended cordless telephone system
US5142397A (en) 1990-01-04 1992-08-25 Dockery Devan T System for extending the effective operational range of an infrared remote control system
US5161021A (en) 1990-12-18 1992-11-03 Tsai Ching Yun Wireless video/audio signal or data transmission device and its remote control circuit
US5187806A (en) 1990-02-16 1993-02-16 Johnson Edward R Apparatus and method for expanding cellular system capacity
US5187803A (en) 1990-01-18 1993-02-16 Andrew Corporation Regenerative rf bi-directional amplifier system
US5210788A (en) 1986-10-22 1993-05-11 Nilssen Ole K Telephone instrument and distribution system
US5230086A (en) 1989-02-04 1993-07-20 Plessey Semiconductors Limited Narrow band communication system
US5247347A (en) 1991-09-27 1993-09-21 Bell Atlantic Network Services, Inc. Pstn architecture for video-on-demand services
JPH05252559A (en) 1992-03-06 1993-09-28 Nippon Telegr & Teleph Corp <Ntt> Diversity transmission and reception system
US5251053A (en) 1990-06-15 1993-10-05 Alcatel N.V. Radio communication system
GB2266028A (en) 1992-03-31 1993-10-13 Usw Pcn Inc Active two-way radio repeater
US5255268A (en) 1992-02-04 1993-10-19 International Business Data distribution network with improved broadcast feature
US5265150A (en) 1991-01-30 1993-11-23 At&T Bell Laboratories Automatically configuring wireless PBX system
JPH05327576A (en) 1992-05-15 1993-12-10 Nippon Telegr & Teleph Corp <Ntt> Diversity transmission/reception system
JPH05327569A (en) 1992-05-25 1993-12-10 Nippon Telegr & Teleph Corp <Ntt> Diversity transmission/reception system
US5297203A (en) 1991-05-29 1994-03-22 Video Technology Engineering, Ltd. Digital cordless telephone apparatus
WO1994013067A1 (en) 1992-11-23 1994-06-09 Telefonaktiebolaget Lm Ericsson Radio coverage in closed environments
US5321736A (en) 1992-01-03 1994-06-14 Pcs Microcell International Inc. Distributed RF repeater arrangement for cordless telephones
US5321846A (en) 1990-04-28 1994-06-14 Sony Corporation Signal transmission system with quicker response and with parallel and serial outputs
US5339184A (en) 1992-06-15 1994-08-16 Gte Laboratories Incorporated Fiber optic antenna remoting for multi-sector cell sites
US5361407A (en) 1991-12-02 1994-11-01 Sony Corporation Double superheterodyne receiver with independent frequency calibration of two local oscillators
US5428836A (en) 1992-01-21 1995-06-27 Motorola Inc. Radio receiver for forming a baseband signal of time-varying frequencies
US5432838A (en) 1990-12-14 1995-07-11 Ainsworth Technologies Inc. Communication system
US5457557A (en) 1994-01-21 1995-10-10 Ortel Corporation Low cost optical fiber RF signal distribution system
US5469495A (en) 1993-05-28 1995-11-21 U S West Advanced Technologies, Inc. Method and apparatus for delivering secured telephone service in hybrid coaxial cable network
US5481249A (en) 1992-02-14 1996-01-02 Canon Kabushiki Kaisha Bidirectional communication apparatus for transmitting/receiving information by wireless communication or through a power line
US5489894A (en) 1991-07-08 1996-02-06 Motorola, Inc. Television paging system
US5502446A (en) 1994-05-02 1996-03-26 Trimble Navigation Limited GPS-based automatic target reporting and finding network and components
EP0709974A1 (en) 1994-10-26 1996-05-01 Northern Telecom Limited Method and arrangement for antenna diversity in a base station receiver
WO1996013102A1 (en) 1994-10-24 1996-05-02 Motorola Inc. Method and apparatus for fast fourier transform based maximal ratio combining
US5537637A (en) 1993-09-21 1996-07-16 Nhk Integrated Technology, Inc. Medium-frequency radio broadcasting retransmission system for confined and electromagnetically shielded areas
US5539821A (en) 1995-01-24 1996-07-23 At&T Corp. Power outlet mount for a portable telephone
US5550898A (en) 1992-11-30 1996-08-27 Lucent Technologies Inc. Metallic macrocell/microcell interface
US5551057A (en) 1994-06-08 1996-08-27 Lucent Technologies Inc. Cellular mobile radio system power control
US5565855A (en) 1991-05-06 1996-10-15 U.S. Philips Corporation Building management system
US5572575A (en) 1994-03-24 1996-11-05 Matsushita Electric Industrial Co., Ltd. Cordless telephone system having speaker phone function
US5574964A (en) 1995-05-30 1996-11-12 Apple Computer, Inc. Signal distribution system
US5579221A (en) 1993-12-31 1996-11-26 Samsung Electronics Co., Ltd. Home automation system having user controlled definition function
US5600333A (en) 1995-01-26 1997-02-04 Larsen Electronics, Inc. Active repeater antenna assembly
US5619251A (en) 1993-08-13 1997-04-08 Kabushiki Kaisha Toshiba Two-way CATV system and remote control system
US5619505A (en) 1995-01-26 1997-04-08 Motorola Inc. Method for producing and recovering a data stream for a DMT transceiver
US5628055A (en) 1993-03-04 1997-05-06 Telefonaktiebolaget L M Ericsson Publ Modular radio communications system
US5634191A (en) 1994-10-24 1997-05-27 Pcs Microcell International, Inc. Self-adjusting RF repeater arrangements for wireless telephone systems
US5657358A (en) 1985-03-20 1997-08-12 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or plurality of RF channels
GB2313020A (en) 1996-05-09 1997-11-12 Samsung Electronics Co Ltd Base Station Apparatus for a CDMA Radio Communication System
US5694232A (en) 1995-12-06 1997-12-02 Ericsson Raynet Full duplex optical modem for broadband access network
US5696861A (en) 1996-08-13 1997-12-09 Schimmeyer; Werner K. Method and apparatus for simultaneously connecting data/signal communication lines and power lines to a data/RF receiver/transmitter
US5708705A (en) 1994-04-28 1998-01-13 Nec Corporation Wallhung arrangement for a cordless telephone
US5708961A (en) 1995-05-01 1998-01-13 Bell Atlantic Network Services, Inc. Wireless on-premises video distribution using digital multiplexing
WO1998004054A1 (en) 1996-07-18 1998-01-29 Ericsson Inc. System and method for reducing cumulative noise in a distributed antenna network
US5736965A (en) 1996-02-07 1998-04-07 Lutron Electronics Co. Inc. Compact radio frequency transmitting and receiving antenna and control device employing same
US5748104A (en) 1996-07-11 1998-05-05 Qualcomm Incorporated Wireless remote telemetry system
US5758294A (en) 1994-11-23 1998-05-26 Hughs Electronics Corporation Radio port in a wireless personal communication system
US5765099A (en) 1996-04-19 1998-06-09 Georges; John B. Distribution of radio-frequency signals through low bandwidth infrastructures
US5774789A (en) 1995-12-14 1998-06-30 Allen Telecom Inc. RF communication signal distribution system and method
US5809395A (en) 1991-01-15 1998-09-15 Rogers Cable Systems Limited Remote antenna driver for a radio telephony system
US5812184A (en) 1986-05-14 1998-09-22 Radio Telecom & Technology, Inc. Transmission of frame-to-frame reversed polarity signals in a two-way cable TV conversion system
US5812786A (en) 1995-06-21 1998-09-22 Bell Atlantic Network Services, Inc. Variable rate and variable mode transmission system
US5815086A (en) 1994-10-20 1998-09-29 Ies Technologies, Inc. Automated appliance control system
US5822678A (en) 1996-08-29 1998-10-13 Ericsson, Inc. CATV network for transport of radio frequency signals
US5828663A (en) 1994-12-02 1998-10-27 Nec Corp. Access control system for wireless-lan terminals
US5832365A (en) 1996-09-30 1998-11-03 Lucent Technologies Inc. Communication system comprising an active-antenna repeater
US5832364A (en) 1995-10-06 1998-11-03 Airnet Communications Corp. Distributing wireless system carrier signals within a building using existing power line wiring
US5835863A (en) 1995-10-25 1998-11-10 Oki Electric Industry Co., Ltd. Wireless telephone for cellular telephone system
US5838226A (en) 1996-02-07 1998-11-17 Lutron Electronics Co.Inc. Communication protocol for transmission system for controlling and determining the status of electrical devices from remote locations
US5864284A (en) 1997-03-06 1999-01-26 Sanderson; Lelon Wayne Apparatus for coupling radio-frequency signals to and from a cable of a power distribution network
US5896569A (en) 1996-05-15 1999-04-20 Communications Manufacturing Company Wireless access to telephone network dial tone
US5901340A (en) 1995-06-28 1999-05-04 The Whitaker Corporation Wideband signal distribution system
US5905442A (en) 1996-02-07 1999-05-18 Lutron Electronics Co., Inc. Method and apparatus for controlling and determining the status of electrical devices from remote locations
US5910776A (en) 1994-10-24 1999-06-08 Id Technologies, Inc. Method and apparatus for identifying locating or monitoring equipment or other objects
US5926531A (en) 1997-02-14 1999-07-20 Statsignal Systems, Inc. Transmitter for accessing pay-type telephones
US5929896A (en) 1989-07-14 1999-07-27 Inline Connection Corporation RF broadcast system utilizing internal telephone lines
US5930719A (en) 1996-09-19 1999-07-27 Wireless Logic, Inc. Data and voice cordless telephone system
US5930682A (en) 1996-04-19 1999-07-27 Lgc Wireless, Inc. Centralized channel selection in a distributed RF antenna system
US5937348A (en) 1995-10-05 1999-08-10 International Business Machines Corporation Cordless communication system for a portable computer modem
US5937342A (en) 1997-01-28 1999-08-10 Dynamic Telecommunications, Inc. Wireless local distribution system using standard power lines
US5936660A (en) 1996-12-12 1999-08-10 Rockwell Semiconductor System, Inc. Digital video converter box for subscriber/home with multiple television sets
US5940400A (en) 1996-11-06 1999-08-17 Motorola, Inc. Method, device, wireless transceiver and computer for providing collision detection in wireless carrier sense multiple access systems
EP0938204A1 (en) 1997-03-18 1999-08-25 Matsushita Electric Industrial Co., Ltd. Calibration device for array antenna wireless receiver
US5950149A (en) 1997-06-30 1999-09-07 Chrysler Corporation Method for testing vehicle electrical system during manufacturing
US5953670A (en) 1995-05-02 1999-09-14 Northern Telecom Limited Arrangement for providing cellular communication via a CATV network
US5977913A (en) 1997-02-07 1999-11-02 Dominion Wireless Method and apparatus for tracking and locating personnel
US5982854A (en) 1996-02-23 1999-11-09 Alcatel Usa, Inc. Fiber optic based subscriber terminal
US5983070A (en) 1996-04-19 1999-11-09 Lgc Wireless, Inc. Method and system providing increased antenna functionality in a RF distribution system
US5982363A (en) 1997-10-24 1999-11-09 General Instrument Corporation Personal computer-based set-top converter for television services
US5987303A (en) 1996-05-29 1999-11-16 At&T Corp. Wireless transmission using fiber link
US5986574A (en) 1997-10-16 1999-11-16 Peco Energy Company System and method for communication between remote locations
US5995593A (en) 1996-04-30 1999-11-30 Samsung Electronics Co., Ltd. Wire/wireless communication system for communicating between two locations using telephone network
US5994998A (en) 1997-05-29 1999-11-30 3Com Corporation Power transfer apparatus for concurrently transmitting data and power over data wires
US6005884A (en) 1995-11-06 1999-12-21 Ems Technologies, Inc. Distributed architecture for a wireless data communications system
US6014546A (en) 1996-04-19 2000-01-11 Lgc Wireless, Inc. Method and system providing RF distribution for fixed wireless local loop service
US6032057A (en) 1995-01-26 2000-02-29 Nokia Telecommunications Oy Cellular radio system repeater and base station
US6040759A (en) 1998-02-17 2000-03-21 Sanderson; Lelon Wayne Communication system for providing broadband data services using a high-voltage cable of a power system
US6049705A (en) 1998-02-03 2000-04-11 Ericsson Inc. Diversity for mobile terminals
US6069899A (en) 1997-08-28 2000-05-30 Broadcam Homenetworking, Inc. Home area network system and method
US6069588A (en) 1999-02-11 2000-05-30 Ericsson Inc. Systems and methods for coaxially coupling an antenna to a radiotelephone through a window and amplifying signals adjacent and inside the window
US6101341A (en) 1998-02-04 2000-08-08 Fuji Photo Optical Co., Ltd. Photographic camera
US6108331A (en) 1998-07-10 2000-08-22 Upstate Systems Tec, Inc. Single medium wiring scheme for multiple signal distribution in building and access port therefor
US6130896A (en) 1997-10-20 2000-10-10 Intel Corporation Wireless LAN segments with point coordination
US6151480A (en) 1997-06-27 2000-11-21 Adc Telecommunications, Inc. System and method for distributing RF signals over power lines within a substantially closed environment
US6157810A (en) 1996-04-19 2000-12-05 Lgc Wireless, Inc Distribution of radio-frequency signals through low bandwidth infrastructures
US6175860B1 (en) 1997-11-26 2001-01-16 International Business Machines Corporation Method and apparatus for an automatic multi-rate wireless/wired computer network
US6198432B1 (en) 1999-09-29 2001-03-06 Trimble Navigation Limited Method and apparatus for automatic and autonomous assignment of PRN codes to a multiplicity of pseudolites
EP1085684A2 (en) 1999-09-14 2001-03-21 Hitachi, Ltd. Antenna unit and radio base station
US6218931B1 (en) 1999-10-08 2001-04-17 Advanced Micro Devices, Inc. Home-appliance network with nodes identified by direct-sequence spreading codes
US6243413B1 (en) 1998-04-03 2001-06-05 International Business Machines Corporation Modular home-networking communication system and method using disparate communication channels
US6249671B1 (en) 1998-06-05 2001-06-19 Lxe, Inc. Aesthetic enclosure for a wireless network access point
US6256296B1 (en) 1997-12-17 2001-07-03 Yaron Ruziak Network communications link
WO2001080543A2 (en) 2000-04-19 2001-10-25 Serconet Ltd. Network combining wired and non-wired segments
US6317884B1 (en) 1997-02-19 2001-11-13 Next Level Communications Video, data and telephony gateway
US6330244B1 (en) 1996-09-05 2001-12-11 Jerome Swartz System for digital radio communication between a wireless lan and a PBX
US6346875B1 (en) 2000-01-03 2002-02-12 General Electric Company GHM aggregator
US6353599B1 (en) 1995-10-16 2002-03-05 Nec Corporation Wireless enumeration
US20020035624A1 (en) 2000-09-19 2002-03-21 Samsung Electronics Co., Ltd. Gateway and a method for operating the same
US20020034220A1 (en) 2000-09-21 2002-03-21 Tom Duxbury Apparatus and method for digital subscriber line signal communications
US20020037004A1 (en) 1998-03-13 2002-03-28 Ameritech Corporation Home gateway system and method
US20020038459A1 (en) 2000-09-28 2002-03-28 Pekka Talmola Method and arrangement for locally and wirelessly distributing broadband data
US20020049036A1 (en) 1999-10-13 2002-04-25 Scott R. Bullock Wireless phone/data jack using 49 mhz rf technology
US6392349B1 (en) 1998-10-30 2002-05-21 David B. Crenshaw Remote control test apparatus
US20020061012A1 (en) 1999-04-13 2002-05-23 Thi James C. Cable modem with voice processing capability
US6400957B1 (en) 1998-06-17 2002-06-04 Smart-Tel Llc Wireless phone-line interface
US6400815B1 (en) 2000-05-23 2002-06-04 At&T Corp. Method and apparatus for subscriber line to telephone call distribution
US20020075806A1 (en) 2000-11-27 2002-06-20 Ofir Shalvi Delivery of high QoS broadband services
US6438109B1 (en) 2000-02-07 2002-08-20 Motorola, Inc. Method to establish a home network on multiple physical layers
WO2002065229A2 (en) 2001-02-13 2002-08-22 T.M.T. Third Millenium Technologies Ltd. Cableran networking over coaxial cables
US6452923B1 (en) 1998-12-31 2002-09-17 At&T Corp Cable connected wan interconnectivity services for corporate telecommuters
US6452910B1 (en) 2000-07-20 2002-09-17 Cadence Design Systems, Inc. Bridging apparatus for interconnecting a wireless PAN and a wireless LAN
US20020146207A1 (en) 2001-04-05 2002-10-10 Max Chu Fiber converter faceplate outlet
WO2002091618A1 (en) 2001-05-02 2002-11-14 Passover, Inc. Multi-band cellular service over catv network
US6483470B1 (en) 1999-09-08 2002-11-19 Qwest Communications International, Inc. Power supply for a light pole mounted wireless antenna
US6493875B1 (en) 1997-02-19 2002-12-10 Next Level Communications, Inc. In-home wireless
US6492897B1 (en) 2000-08-04 2002-12-10 Richard A. Mowery, Jr. System for coupling wireless signals to and from a power transmission line communication system
US20020186836A1 (en) 2001-06-12 2002-12-12 Leuca Ileana A. Multi-service network interface apparatus for frequency-division multiplexed communications systems
US6501942B1 (en) 1999-10-29 2002-12-31 Qualcomm, Incorporated In-building radio-frequency coverage
US20030006881A1 (en) 2000-04-12 2003-01-09 Reyes Ronald R. System and method for power line communication
US20030018975A1 (en) 2001-07-18 2003-01-23 Stone Christopher J. Method and system for wireless audio and video monitoring
US6513163B1 (en) 1999-05-20 2003-01-28 Transcept, Inc. Embedded forward reference and control
US20030031191A1 (en) 2001-07-21 2003-02-13 Ladd El Wardani Broadband network bridging various wiring channels
US6535110B1 (en) 1999-08-17 2003-03-18 Microsoft Corporation Device adapter for automation system
US6546098B1 (en) 1999-06-21 2003-04-08 Conexant Systems, Inc. System and method for distributing enhanced telephony service to customer premises equipment
US20030067910A1 (en) 2001-08-30 2003-04-10 Kaveh Razazian Voice conferencing over a power line
US20030068033A1 (en) 2001-10-10 2003-04-10 Kiko Frederick J. Telecommunications gateway and method
US6563418B1 (en) 2000-12-08 2003-05-13 Cisco Technology, Inc. Automotive network and adapter
US20030100330A1 (en) 2001-11-28 2003-05-29 Tomlinson Harold Woodruff Universal telephone network-radio frequency enhanced bridge
US20030100288A1 (en) 2001-11-29 2003-05-29 General Electric Company One Research Circle Universal PLC radio frequency enhanced bridge
US20030099228A1 (en) 2001-11-28 2003-05-29 Martin Alcock Local area and multimedia network using radio frequency transceivers and coaxial cable
US6573826B2 (en) 2001-07-25 2003-06-03 Yuan-Sheng Pan Wireless communication system by using electric power line as data link network
US6572384B1 (en) 2001-02-08 2003-06-03 3Com Corporation Method and apparatus for interconnecting circuit cards
US20030106067A1 (en) 2001-11-30 2003-06-05 Hoskins Steve J. Integrated internet protocol (IP) gateway services in an RF cable network
US6577231B2 (en) 2001-04-03 2003-06-10 Thomson Licensing Sa Clock synchronization over a powerline modem network for multiple devices
US6580728B1 (en) 1999-03-11 2003-06-17 Qwest Communications International Inc. Local multi-point-distribution system architectures
US6583719B2 (en) 2000-11-30 2003-06-24 Matsushita Electric Works, Ltd. Setting apparatus and setting method each for setting setting information in electric power line carrier communication terminal apparatus
US6587739B1 (en) 2000-09-29 2003-07-01 Sunbeam Products, Inc. Appliance communication and control system and appliances for use in same
EP1331762A1 (en) 2002-01-25 2003-07-30 Quanta Computer Inc. Method and apparatus for a flexible peripheral access router
US6618578B1 (en) 1997-02-14 2003-09-09 Statsignal Systems, Inc System and method for communicating with a remote communication unit via the public switched telephone network (PSTN)
US20030169752A1 (en) 2000-01-31 2003-09-11 Aeptec Microsystems, Inc. Broadband communications access device
US6622304B1 (en) 1996-09-09 2003-09-16 Thomas W. Carhart Interface system for computing apparatus and communications stations
US6650871B1 (en) 1999-10-14 2003-11-18 Agere Systems Inc. Cordless RF range extension for wireless piconets
US6654616B1 (en) 1999-09-27 2003-11-25 Verizon Laboratories Inc. Wireless area network having flexible backhauls for creating backhaul network
US6668328B1 (en) 1999-05-19 2003-12-23 Globespanvirata, Inc. Computer system having a power supply for coupling signals to a power line network and transmitting infrared signal to at least one peripheral card
DE20317501U1 (en) 2003-11-13 2004-01-15 Coolnection Technology Co., Ltd. Integrated communication apparatus providing universal voice message transmission and reception for different types of telephone
US6683531B2 (en) 2000-05-04 2004-01-27 Trench Limited Coupling device for providing a communications link for RF broadband data signals to a power line and method for installing same
US20040032373A1 (en) 2002-08-14 2004-02-19 Argy Petros Combination satellite and terrestrial antenna
US6710721B1 (en) 1999-10-16 2004-03-23 Datamatic Inc. Radio frequency automated meter reading device
US20040073597A1 (en) 2002-01-30 2004-04-15 Caveney Jack E. Systems and methods for managing a network
US6725059B1 (en) 1998-07-21 2004-04-20 Globespanvirata, Inc. System and method for improving communications between a digital loop carrier and a central office
US20040077310A1 (en) 2002-08-14 2004-04-22 David Levy Hybrid networking system
US6731945B2 (en) 2000-01-12 2004-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Private wireless WAP system
US20040085976A1 (en) 2002-11-06 2004-05-06 Mark Dale Downstream time domian based adaptive modulation for DOCSIS based applications
US6737984B1 (en) 1997-08-15 2004-05-18 General Electric Company Automatic meter reading system using locally communicating utility meters
US6738641B1 (en) 2000-11-22 2004-05-18 Toshiba America Information Systems, Inc. Distributed transceiver for wireless communication system
US20040102196A1 (en) 2001-04-06 2004-05-27 Mikko Weckstrom Location method and system
US20040100930A1 (en) 2002-11-25 2004-05-27 Foxcom Wireless WLAN distributed antenna system
US6748080B2 (en) 2002-05-24 2004-06-08 Scientific-Atlanta, Inc. Apparatus for entitling remote client devices
US6751441B1 (en) 2000-10-03 2004-06-15 At&T Corp. Intra-premises wireless broadband service using lumped and distributed wireless radiation from cable source input
US20040123322A1 (en) 2002-12-24 2004-06-24 Nedim Erkocevic Combining multimedia signaling and wireless network signaling on a common communication medium
US20040125870A1 (en) 2002-12-17 2004-07-01 Kenichi Yamazaki Interconnecting device with built-in power line communication modem
US6759946B2 (en) 2001-12-06 2004-07-06 Mitsubishi Electric Research Laboratories, Inc. Home appliances network
US6760601B1 (en) 1999-11-29 2004-07-06 Nokia Corporation Apparatus for providing information services to a telecommunication device user
US20040131357A1 (en) 2001-07-05 2004-07-08 Wave7 Optics, Inc. Method and system for supporting multiple services with a subscriber optical interface located outside a subscriber's premises
US20040136388A1 (en) 2002-12-26 2004-07-15 Schaff Glen D. Video-monitor/recording/playback system
US6771164B1 (en) 2002-09-05 2004-08-03 Nrc Corporation Automatic identification of local devices
US20040151305A1 (en) 2003-01-30 2004-08-05 Serconet Ltd Method and system for providing DC power on local telephone lines
US20040158649A1 (en) 2002-12-20 2004-08-12 Lior Ophir System, method and apparatuses for hybrid coax-wireless multimedia networks using 802.11 technology
WO2004068827A1 (en) 2003-01-30 2004-08-12 Wireless Roots Ltd. Apparatus for allowing handheld wireless devices to communicate voice and information over preexisting telephone lines
US6781530B2 (en) 2002-11-12 2004-08-24 Pulse-Link, Inc. Ultra-wideband pulse modulation system and method
US6782048B2 (en) 2002-06-21 2004-08-24 Pulse-Link, Inc. Ultra-wideband communication through a wired network
US20040187156A1 (en) 2003-01-08 2004-09-23 Stephen Palm Transporting home networking frame-based communication signals over coaxial cables
US20040203387A1 (en) 2003-03-31 2004-10-14 Sbc Knowledge Ventures, L.P. System and method for controlling appliances with a wireless data enabled remote control
US20040201457A1 (en) 1996-05-13 2004-10-14 O'toole James E. Radio frequency data communications device
US6807463B1 (en) 2000-01-13 2004-10-19 Sunbeam Products, Inc. Processor-controlled mixture with weight sensors
US20040208599A1 (en) 2002-04-04 2004-10-21 Jerome Swartz Communications system
US20040208167A1 (en) 2001-06-04 2004-10-21 Hiroyuki Kishida Internet telephone apparatus and internet telephone system
US20040213351A1 (en) 2000-07-19 2004-10-28 Shattil Steve J. Method and apparatus for transmitting signals having a carrier-interferometry architecture
US20040235468A1 (en) 2003-05-19 2004-11-25 Luebke Charles J. Wireless network clustering communication system, wireless communication network, and access port for same
US6826174B1 (en) 2000-03-02 2004-11-30 3Com Corporation Voice-over-IP interface for standard household telephone
US20040248531A1 (en) 2001-01-12 2004-12-09 Nec Corporation Method and circuit for avoiding band interference wave in receiver
WO2004107783A1 (en) 2003-05-30 2004-12-09 Utstarcom Korea Limited Remote unit for adding frequency assignments to a separation-type base transceiver station
US6831921B2 (en) 2002-03-27 2004-12-14 James A. Higgins Wireless internet access system
US20040255332A1 (en) 2003-06-16 2004-12-16 Bertonis James G. Apparatus and method for extending DOCSIS cable modem service over wireless links
US20050010954A1 (en) 2003-07-09 2005-01-13 Serconet Ltd. Modular outlet
US6844809B2 (en) 2001-12-04 2005-01-18 Constantine N. Manis Passive optical network backhaul for powerline communications
US20050024945A1 (en) 2001-08-30 2005-02-03 Micron Technology, Inc. Programmable memory address and decode circuits with low tunnel barrier interpoly insulators
US20050034159A1 (en) 2002-12-20 2005-02-10 Texas Instruments Incorporated Implementing a hybrid wireless and coaxial cable network
US6857132B1 (en) 2000-01-14 2005-02-15 Terayon Communication Systems, Inc. Head end multiplexer to select and transmit video-on-demand and other requested programs and services
US6862353B2 (en) 2000-04-24 2005-03-01 Broadcom Corporation System and method for providing power over a home phone line network
US6862349B1 (en) 1993-05-28 2005-03-01 Mediaone Group, Inc. Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network
US20050073968A1 (en) 2003-02-14 2005-04-07 Perlman Stephen G. Self-configuring, adaptive, three-dimensional, wireless network
US20050084004A1 (en) 2003-10-17 2005-04-21 Angelo Bione Wireless DOCSIS modem
US6885674B2 (en) 2002-05-28 2005-04-26 Amperion, Inc. Communications system for providing broadband communications using a medium voltage cable of a power system
US20050089061A1 (en) 2003-08-28 2005-04-28 Oleg Logvinov Joint powerline/ultra-wide band system
US6895249B2 (en) 2000-07-14 2005-05-17 Qualcomm Incorporated Method and apparatus for broadcasting position location data in a wireless communication system
US20050114325A1 (en) 2000-10-30 2005-05-26 Microsoft Corporation Semi-automatic annotation of multimedia objects
US6901439B1 (en) 1999-01-22 2005-05-31 Leviton Manufacturing Co., Inc. Method of adding a device to a network
US20050117545A1 (en) 2003-12-02 2005-06-02 Intel Corporation RF circuitry and compact hybrid for wireless communication devices
US20050136972A1 (en) 2003-12-09 2005-06-23 Smith Derek M. Plug-in network appliance
US20050144647A1 (en) 2002-02-20 2005-06-30 Mordechai Zussman Wireless provider monitoring of catv segment
US6914539B2 (en) 2002-10-07 2005-07-05 General Electric Company System and method for a low rate, in-band broadcast communication for medical telemetry
US20050164666A1 (en) 2002-10-02 2005-07-28 Lang Jack A. Communication methods and apparatus
US6931659B1 (en) 1999-08-05 2005-08-16 Sharp Kabushiki Kaisha Cable modem having a wireless communication function
US20050181839A1 (en) 2004-02-17 2005-08-18 Nokia Corporation Devices and methods for simultaneous battery charging and data transmission in a mobile terminal
US20050180561A1 (en) 2004-02-16 2005-08-18 Serconet Ltd. Outlet add-on module
US6933835B2 (en) 2001-02-14 2005-08-23 Current Technologies, Llc Data communication over a power line
US20050184915A1 (en) 2004-02-25 2005-08-25 Control4 Corporation System for remotely controlling an electrical switching device
US6941576B2 (en) 1999-04-12 2005-09-06 Texas Instruments Incorporated System and methods for home network communications
US6950567B2 (en) 2001-02-14 2005-09-27 Current Technologies, Llc Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US20050226200A1 (en) 2004-03-26 2005-10-13 Edgecom A Power Line Communication System that Enables Low-Cost Last Mile Access to any Legacy or Emerging Network Infrastructure
US20050226206A1 (en) 2004-04-13 2005-10-13 Samsung Electronics Co., Ltd. System and method for wireless network in coordinator-based wireless environment
US20050239400A1 (en) 2004-04-21 2005-10-27 Mitsubishi Denki Kabushiki Kaisha Radio access line extending device
US6961763B1 (en) 1999-08-17 2005-11-01 Microsoft Corporation Automation system for controlling and monitoring devices and sensors
US6963936B2 (en) 2001-07-16 2005-11-08 Hewlett-Packard Development Company, L.P. Network-attached peripheral appliance
US6965302B2 (en) 2000-04-14 2005-11-15 Current Technologies, Llc Power line communication system and method of using the same
WO2005109845A1 (en) 2004-05-06 2005-11-17 Serconet Ltd. System and method for carrying a wireless based signal over wiring
US20050265428A1 (en) 2000-05-26 2005-12-01 Freescale Semiconductor, Inc. Low power, high resolution timing generator for ultra-wide bandwidth communication systems
US20050268322A1 (en) 2004-05-04 2005-12-01 Watson Scott F Apparatus and method for utilizing a pre-existing power grid to provide internet access to a home or office or the like
US20050265430A1 (en) 1995-06-30 2005-12-01 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US20050280598A1 (en) 2004-06-21 2005-12-22 Lutron Electronics Co., Inc. Compact radio frequency transmitting and receiving antenna and control device employing same
US6980089B1 (en) 2000-08-09 2005-12-27 Current Technologies, Llc Non-intrusive coupling to shielded power cable
US6985072B2 (en) 2001-12-21 2006-01-10 Maxim Integrated Products, Inc. Apparatus and method for a low-rate data transmission mode over a power line
US6985714B2 (en) 2001-11-27 2006-01-10 Sony Corporation Communication system, communication terminal and communication method
US20060007945A1 (en) 2002-03-11 2006-01-12 Roland Schoettle Medium to disparate medium hopping mesh network
US6987988B2 (en) 2001-10-22 2006-01-17 Waxess, Inc. Cordless and wireless telephone docking station with land line interface and switching mode
US20060018328A1 (en) 2004-07-23 2006-01-26 Comcast Cable Holdings, Llc Method and system for powerline networking
US6993317B2 (en) 2002-10-02 2006-01-31 Amperion, Inc. Method and system for signal repeating in powerline communications
US6995657B2 (en) 2000-08-14 2006-02-07 Main.Net Communications Ltd. Power line communication system
US6996837B1 (en) 1999-08-27 2006-02-07 Pioneer Corporation Terminal equipment for cable television
US7006006B2 (en) 2002-12-05 2006-02-28 Witkow Edward H System and method for controlling home entertainment units with radio frequency and infrared signals
US7009946B1 (en) 2000-06-22 2006-03-07 Intel Corporation Method and apparatus for multi-access wireless communication
US7009527B2 (en) 2001-11-22 2006-03-07 Doo Won Co., Ltd Control system for suppling power by power line communication
US20060056283A1 (en) 2001-09-05 2006-03-16 Santosh Anikhindi Interference mitigation in a wireless communication system
US7015797B2 (en) 2003-02-10 2006-03-21 Cable Electronics, Inc. System and method of providing infra-red signals over power lines
US20060066455A1 (en) 2003-07-18 2006-03-30 Hancock Martin A Grouping mesh clusters
US7023382B1 (en) 2004-09-17 2006-04-04 Fujitsu Limited Positioning signal transmission apparatus
US20060072684A1 (en) 2004-10-05 2006-04-06 Kamilo Feher Data communication for wired and wireless communication
US7027483B2 (en) 2002-06-21 2006-04-11 Pulse-Link, Inc. Ultra-wideband communication through local power lines
US7027416B1 (en) 1997-10-01 2006-04-11 Honeywell, Inc. Multi tier wireless communication system
US7027770B2 (en) 2001-05-22 2006-04-11 Andrew Corporation Repeater for customer premises
US7035270B2 (en) 1999-12-30 2006-04-25 General Instrument Corporation Home networking gateway
US7046716B1 (en) 2003-07-14 2006-05-16 Miao George J Dual-mode ultra wideband and wireless local area network communications
WO2006052216A1 (en) 2004-11-15 2006-05-18 Northspark Ab A system for distributing radio signal
US20060128425A1 (en) 2004-12-13 2006-06-15 Rooyen Pieter V Method and system for mobile architecture supporting cellular or wireless networks and broadcast utilizing a multichip cellular and broadcast silicon solution
US20060126617A1 (en) 2004-12-15 2006-06-15 Cregg Daniel B Mesh network of intelligent devices communicating via powerline and radio frequency
US7064654B2 (en) 2002-12-10 2006-06-20 Current Technologies, Llc Power line communication system and method of operating the same
US20060133465A1 (en) 2004-12-21 2006-06-22 Dockemeyer Joseph R Jr Wireless home repeater for satellite radio products
US20060152344A1 (en) 2002-12-07 2006-07-13 Mowery Richard A Jr Powerline Communication Network Handoff
US20060172781A1 (en) 2003-09-03 2006-08-03 Behzad Mohebbi Short-range cellular booster
US7088238B2 (en) 2002-12-11 2006-08-08 Broadcom, Inc. Access, monitoring, and control of appliances via a media processing system
US7099621B1 (en) 1999-06-25 2006-08-29 Cocomo Mb Communications, Inc. Electromagnetic field communications system for wireless networks
US20060210278A1 (en) 2005-03-21 2006-09-21 Cregg Daniel B Remote operation of local or distant infrared-controllable and non-infrared-controllable devices
US7113763B2 (en) 2002-06-03 2006-09-26 Nokia Corporation Bluetooth access point and remote bluetooth modules for powerline based networking
US7113134B1 (en) 2004-03-12 2006-09-26 Current Technologies, Llc Transformer antenna device and method of using the same
US7117520B2 (en) 2003-02-24 2006-10-03 Thomson Licensing System and method for voice/data transmission over cable networks
US20060220833A1 (en) 2005-04-04 2006-10-05 Berkman William H Power line communications system and method
US20060222086A1 (en) 2005-03-29 2006-10-05 Frye Bernard F Jr Multi-unit power line communications system and method
WO2006105185A2 (en) 2005-03-31 2006-10-05 Silicon Laboratories Inc. Techniques for partitioning radios in wireless communication systems
US7123939B1 (en) 1999-02-05 2006-10-17 Interdigital Technology Corporation Communication station with automatic cable loss compensation
US7133729B1 (en) 1999-08-17 2006-11-07 Microsoft Corporation Pattern-and model-based power line monitoring
US20060251086A1 (en) 2003-05-30 2006-11-09 Sam-Chul Ha Home network system
US20060262014A1 (en) 2005-05-17 2006-11-23 Yaron Shemesh Radio beacon, mobile station, processor, system and method for determining location
US20060276227A1 (en) 2005-06-02 2006-12-07 Qualcomm Incorporated Multi-antenna station with distributed antennas
US20060274745A1 (en) 2002-05-13 2006-12-07 Kiyon, Inc. System and Method for Transparent Wireless Bridging of Communication Channel Segments
US7151575B1 (en) 2002-07-18 2006-12-19 Entropic Communications, Inc. Wireless extension for cable television signals
US20060286958A1 (en) 2005-06-17 2006-12-21 Lee Hyung K Access pointer for interconnecting power line communication network and wireless network and method therefor
US7155214B2 (en) 2004-09-09 2006-12-26 Dana Innovations I-port controller
WO2006136811A1 (en) 2005-06-23 2006-12-28 Zinwave Limited Optical transmission system
US20070002772A1 (en) 2005-04-04 2007-01-04 Berkman William H Power Line Communication Device and Method
US20070002876A1 (en) 2005-06-21 2007-01-04 Berkman William H Wireless link for power line communications system
US7164886B2 (en) 2001-10-30 2007-01-16 Texas Instruments Incorporated Bluetooth transparent bridge
US7167923B2 (en) 2000-08-24 2007-01-23 2Wire, Inc. System and method for selectively bridging and routing data packets between multiple networks
US7167525B2 (en) 2002-06-21 2007-01-23 Pulse-Link, Inc. Ultra-wideband communication through twisted-pair wire media
US7167078B2 (en) 2004-02-19 2007-01-23 Pourchot Shawn C Electric, telephone or network access control system and method
US20070019959A1 (en) 2005-07-19 2007-01-25 Logus Broadband Wireless Solutions Inc. Apparatus and method for transferring signals between a fiber network and a wireless network antenna
US20070025368A1 (en) 2003-05-30 2007-02-01 Lg Electronics, Inc. Home network system
US7181023B1 (en) 1997-08-15 2007-02-20 Leisure Tech Electronics Pty., Ltd. Distributed stereo system
US20070047573A1 (en) 2005-08-29 2007-03-01 Arkados, Inc. Networking and multimedia adapter for power outlets
US20070054622A1 (en) 2005-09-02 2007-03-08 Berkman William H Hybrid power line wireless communication system
US20070058666A1 (en) 2005-08-09 2007-03-15 Adc Telecommunications, Inc. Wall-mountable connector
US7194251B2 (en) 2001-03-20 2007-03-20 3Com Corporation Intelligent gate distributed use and device network access management on personal area network
US20070082649A1 (en) 2005-10-07 2007-04-12 Asoka Usa Corporation Power line communication and AC power outlet apparatus and method
US20070083668A1 (en) 2005-10-07 2007-04-12 Network Chemistry, Inc. Method and apparatus for facilitating network expansion
US7209719B2 (en) 2003-01-28 2007-04-24 Gateway Inc. Home power line network connected phone
US7209945B2 (en) 2002-09-11 2007-04-24 Bellsouth Intellectual Property Corporation Application services gateway
US20070104168A1 (en) 2005-11-10 2007-05-10 Junxion Inc. Gateway network multiplexing
US20070112939A1 (en) 2005-11-17 2007-05-17 Sbc Knowledge Ventures L.P. System and method for home automation
US20070139188A1 (en) 2005-12-15 2007-06-21 General Instrument Corporation Method and apparatus for communicating between a home network and a wireless network
WO2007069241A2 (en) 2005-12-12 2007-06-21 Distantec Ltd. Active ip control device
US20070167144A1 (en) 2006-01-19 2007-07-19 Matsushita Electric Industrial Co., Ltd. Communication apparatus and communication method
US20070177495A1 (en) 2006-01-27 2007-08-02 Leviton Manufacturing Co., Inc. Lan by ultra-wideband system and method
US7257108B2 (en) 2004-07-28 2007-08-14 Lenovo (Singapore) Pte. Ltd. Determining the physical location of resources on and proximate to a network
US20070198748A1 (en) 2006-02-01 2007-08-23 Leviton Manufacturing Co., Inc. Power line communication hub system and method
US7266344B2 (en) 2004-06-02 2007-09-04 Wayne-Dalton Corp. Remotely activated bridge device for use with a home network and methods for programming and using the same
US20070206629A1 (en) 2006-03-03 2007-09-06 Lite-On Technology Corp. Network Equipment Applied In Power Line Carrier Communication System
US20070254714A1 (en) 2006-05-01 2007-11-01 Martich Mark E Wireless access point
US7292859B2 (en) 2003-03-19 2007-11-06 Samsung Electronics Co., Ltd. Apparatus and method for managing device information through networks
US20070264009A1 (en) 2006-04-28 2007-11-15 Adc Telecommunications, Inc. Systems and methods of optical path protection for distributed antenna systems
US7299287B1 (en) 2001-03-20 2007-11-20 3Com Corporation Secure network outlet for supporting IP device address assigning functionality
WO2007133630A2 (en) 2006-05-10 2007-11-22 Mobileaccess Networks Ltd. Transmission of information to a gps device
US20070268846A1 (en) 2006-03-31 2007-11-22 Widefi, Inc. Enhanced physical layer repeater for operation in WiMAX systems
US20070268886A1 (en) 2005-09-21 2007-11-22 Rami Caspi Method and apparatus for distributed indication of VoIP telephone calls
US20080144493A1 (en) 2004-06-30 2008-06-19 Chi-Hsiang Yeh Method of interference management for interference/collision prevention/avoidance and spatial reuse enhancement
US7813451B2 (en) 2006-01-11 2010-10-12 Mobileaccess Networks Ltd. Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting

Family Cites Families (320)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568342A (en) 1949-09-15 1951-09-18 Ralph D Collins Signaling method and system
US3406344A (en) 1964-07-01 1968-10-15 Bell Telephone Labor Inc Transmission of low frequency signals by modulation of voice carrier
US3529088A (en) 1967-05-02 1970-09-15 Werner Hauer Multiplex voice and data transmission system
US3511936A (en) 1967-05-26 1970-05-12 Bell Telephone Labor Inc Multiply orthogonal system for transmitting data signals through frequency overlapping channels
GB1236776A (en) * 1967-10-24 1971-06-23 Matsushita Electric Ind Co Ltd Television telephone system
US3992589A (en) 1970-01-29 1976-11-16 Siemens Aktiengesellschaft Frequency multiplex system for transmission of telephone and videophone channels
US3651471A (en) * 1970-03-02 1972-03-21 Nielsen A C Co Data storage and transmission system
US3873771A (en) * 1972-04-11 1975-03-25 Telescan Communications System Simultaneous transmission of a video and an audio signal through an ordinary telephone transmission line
US3872253A (en) * 1972-05-24 1975-03-18 John J Jurschak Signal transmission and surveillance system using a subscriber{3 s telephone line without interfering with normal telephone line operation
US3875339A (en) * 1972-09-05 1975-04-01 I I Communications Inc Variable bandwidth voice and data telephone communication system
US3937889A (en) * 1973-01-15 1976-02-10 Sperry Rand Corporation Data communication apparatus for use in a telephone system
US4008369A (en) * 1975-02-28 1977-02-15 The Magnavox Company Telephone interfaced subscription cable television system especially useful in hotels and motels
NL7600793A (en) 1975-03-17 1976-09-21 Sits Soc It Telecom Siemens Cable distribution system for broadband signals.
US4054910A (en) 1976-02-26 1977-10-18 Tel-E-Tel, Inc. Communication system for the transmission of closed circuit television over an ordinary pair of wires
US4171467A (en) 1978-07-20 1979-10-16 Bell Telephone Laboratories, Incorporated Signal multiplexing circuit
US4206320A (en) 1978-08-21 1980-06-03 University Of Illinois Foundation High speed modem suitable for operating with a switched network
US4302629A (en) 1979-03-14 1981-11-24 Teltone Corporation Digital data transmission system
JPS5824060B2 (en) 1979-06-08 1983-05-19 Nippon Telegraph & Telephone
JPH0132696B2 (en) 1979-11-19 1989-07-10 Kuseruto Chentoro Suteyudei E Lab Terekomyunikatsuiooni Spa
US4339816A (en) 1980-05-29 1982-07-13 International Telephone And Telegraph Corporation Conferencing apparatus and methods for a frequency division multiplex communications system
US4332980A (en) 1980-05-30 1982-06-01 Harris Corporation Multiple services system using telephone local loop
FR2485306A1 (en) 1980-06-23 1981-12-24 Trt Telecom Radio Electr local test system using a modem modulation frequency of displacement
DE3040263C2 (en) 1980-10-24 1982-07-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
FR2497040B1 (en) * 1980-12-24 1988-03-18 Duquesne Jean packet telecommunications network
US4485400A (en) 1981-01-13 1984-11-27 Lemelson Jerome H Video telephone
US4388489A (en) 1981-01-30 1983-06-14 Reuters Limited Conversational video system
CA1166777A (en) 1981-03-23 1984-05-01 Gordon D. Benning Home telephone exchange
US4378470A (en) * 1981-03-25 1983-03-29 Northern Telecom Limited Interface circuits for connection to non-dedicated telephone lines
US4443662A (en) * 1981-04-10 1984-04-17 Northern Telecom Limited Filters comprising reactive components, and a method of determining impedances thereof
US4442540A (en) * 1981-06-04 1984-04-10 Bell Telephone Laboratories, Incorporated Data over voice transmission arrangement
US4521881A (en) 1981-11-02 1985-06-04 Wang Laboratories, Inc. Data communication system with increased effective bandwidth
US4442320A (en) * 1981-12-04 1984-04-10 Base Ten Systems, Inc. Remote subscriber interaction system
US4456986A (en) 1981-12-23 1984-06-26 Northern Telecom Limited Apparatus for coupling signals to or from a two-wire line
US4456985A (en) 1981-12-23 1984-06-26 Northern Telecom Limited Apparatus for coupling signals to or from a two-wire line
US4425642A (en) * 1982-01-08 1984-01-10 Applied Spectrum Technologies, Inc. Simultaneous transmission of two information signals within a band-limited communications channel
CA1175964A (en) 1982-02-22 1984-10-09 John A. Barsellotti Two wire voice and data subscriber loop
JPS58213580A (en) 1982-06-04 1983-12-12 Nec Corp Still picture transmitting device
US4433212A (en) * 1982-06-21 1984-02-21 Applied Spectrum Technologies, Inc. Telephone line interface circuit
US4500751A (en) * 1982-07-20 1985-02-19 Microperipheral Corporation Data communication system
FR2537372B1 (en) * 1982-12-06 1986-12-05 Telecommunications Sa Apparatus and signal processing method and digital rule for the subscriber system of telecommunications and broadcast
US4578540A (en) * 1982-12-20 1986-03-25 At&T Bell Laboratories Telecommunications systems
JPS59122161A (en) * 1982-12-28 1984-07-14 Toshiba Corp Broad band network system
US4577314A (en) * 1983-03-31 1986-03-18 At&T Bell Laboratories Digital multi-customer data interface
US4597077A (en) 1983-05-04 1986-06-24 Cxc Corporation Integrated voice/data/control switching system
US4506387A (en) * 1983-05-25 1985-03-19 Walter Howard F Programming-on-demand cable system and method
US4493948A (en) * 1983-06-27 1985-01-15 The Inteleplex Corporation Transparent secondary information transmission system for an information transmission system
US4528422A (en) 1983-06-27 1985-07-09 The Inteleplex Corporation Transparent secondary information transmission system for an information transmission system
DE3324311A1 (en) * 1983-07-06 1985-01-17 Telefunken Fernseh & Rundfunk Decoder for a frequenzgetastetes signal, in particular a fsk-screen text-signal
GB2146509B (en) * 1983-09-10 1986-08-13 Stc Plc Data transmission system
CA1200938A (en) 1983-09-30 1986-02-18 Mitel Corporation Voice and data interface circuit
US4754326A (en) 1983-10-25 1988-06-28 Keycom Electronic Publishing Method and apparatus for assisting user of information retrieval systems
JPH0522419B2 (en) 1983-12-16 1993-03-29 Fujitsu Ltd
GB8404563D0 (en) 1984-02-21 1984-03-28 Plessey Co Plc Adaptive cancellation bridge circuit
US4546212A (en) 1984-03-08 1985-10-08 Crowder, Inc. Data/voice adapter for telephone network
US4672605A (en) 1984-03-20 1987-06-09 Applied Spectrum Technologies, Inc. Data and voice communications system
US4584690A (en) * 1984-05-07 1986-04-22 D.A.V.I.D. Systems, Inc. Alternate Mark Invert (AMI) transceiver with switchable detection and digital precompensation
US4578535A (en) * 1984-05-08 1986-03-25 Telelogic, Inc. Videotex system
US4985892A (en) * 1984-06-01 1991-01-15 Xerox Corporation Baseband local area network using ordinary telephone wiring
CA1230949A (en) * 1984-06-29 1987-12-29 Nicholas Tsiakas Signal multiplexing circuit
US4646296A (en) * 1984-07-09 1987-02-24 Bard Technologies Distributed telephone system
US4839743A (en) 1984-08-01 1989-06-13 Worlds Of Wonder, Inc. Interactive video and audio controller
US4665516A (en) 1984-09-07 1987-05-12 Itt Corporation Information transport system employing telephone lines
US4768110A (en) 1984-09-20 1988-08-30 Go-Video, Inc. Video cassette recorder having dual decks for selective simultaneous functions
JPH0412529B2 (en) * 1984-10-23 1992-03-04 Hashimoto Corp
US4672602A (en) 1984-11-02 1987-06-09 Itt Corporation Control and routing system
US4644526A (en) * 1984-11-13 1987-02-17 Chialin Wu Full duplex frequency division multiplex communication system
US4821319A (en) * 1985-04-25 1989-04-11 Alcatel Usa Corp. Single line telephone communication system
US4679227A (en) 1985-05-20 1987-07-07 Telebit Corporation Ensemble modem structure for imperfect transmission media
US4755792A (en) 1985-06-13 1988-07-05 Black & Decker Inc. Security control system
EP0214456A1 (en) 1985-08-21 1987-03-18 Siemens Aktiengesellschaft Circuit arrangement for connecting a data terminal to a transmission line connected to a telephone device
US4932047A (en) 1985-11-07 1990-06-05 Luma Telecom, Inc. Conversational video phone
US4825435A (en) * 1985-11-08 1989-04-25 Digital Equipment Corp. Multiport repeater
US4885766A (en) 1986-01-31 1989-12-05 Sharp Kabushiki Kaisha Remote control device using a telephone line
US4757495A (en) 1986-03-05 1988-07-12 Telebit Corporation Speech and data multiplexor optimized for use over impaired and bandwidth restricted analog channels
DE3786946T2 (en) 1986-04-30 1994-01-27 Sharp Kk Method and system for multiplex transmission of an audio signal and a video signal via a communication cable.
NL8601114A (en) 1986-05-01 1987-12-01 Philips Nv Transmission system for the transmission of data bits.
US4969136A (en) 1986-08-08 1990-11-06 Chamberlin David B Communications network and method with appointment information communication capabilities
US4975896A (en) 1986-08-08 1990-12-04 Agosto Iii Nicholas A D Communications network and method
US4901342A (en) * 1986-08-22 1990-02-13 Jones Reese M Local area network connecting computer products via long telephone lines
US4709412A (en) 1986-08-26 1987-11-24 Xantech Corporation Remote control unit integrator console
US5068890A (en) 1986-10-22 1991-11-26 Nilssen Ole K Combined signal and electrical power distribution system
JPS63114333A (en) 1986-10-31 1988-05-19 Nec Home Electronics Ltd Radio bus system
US4918688A (en) * 1986-10-31 1990-04-17 Convergent Technologies, Inc. Method and apparatus for coupling computer work stations
US4731821A (en) * 1986-11-13 1988-03-15 Jackson Iii Thomas H Single wire telephone intercommunication system
US4757497A (en) 1986-12-03 1988-07-12 Lan-Tel, Inc. Local area voice/data communications and switching system
DE3702202A1 (en) 1987-01-26 1988-08-04 Dirr Josef A method for the transmission of analog and / or digital information, in particular with interposition of a, 2 or more switches in telecommunications equipment
US4807225A (en) * 1987-02-02 1989-02-21 American Telephone And Telegraph Company, At&T Technologies, Inc. Telephone line carrier system
FR2610464A1 (en) * 1987-02-04 1988-08-05 Cgv Comp Gen Videotech Method and signal transmission devices in small sections of conductors
US4785448A (en) 1987-02-25 1988-11-15 Reichert Andrew R System for communicating digital data on a standard office telephone system
US4776006A (en) 1987-04-23 1988-10-04 At&T Bell Laboratories Multiplexed data channel controlled telephone system
US4789895A (en) 1987-04-30 1988-12-06 Gte Government Systems Corporation System for synchronizing digital bit stream for telecommunication system
US4780757A (en) 1987-04-30 1988-10-25 Gte Government Systems Corporation Telecommunication system with frame selected continuous audio signals
US4780758A (en) 1987-04-30 1988-10-25 Gte Government Systems Corporation Telecommunication system with burst and continuous audio signals
US4893326A (en) * 1987-05-04 1990-01-09 Video Telecom Corp. Video-telephone communications system
US4769837A (en) 1987-05-04 1988-09-06 Eoa Systems, Inc. Device for adding intercom functions to a phone system
US4785472A (en) 1987-05-11 1988-11-15 The Trustees Of The Stevens Institute Of Technology Remote teaching system
US4945404A (en) 1987-05-15 1990-07-31 Medaon Ltd. Video communication system and phase or frequency modulator included therein
US4888795A (en) 1987-06-30 1989-12-19 Nec Corporation Videotelephone apparatus for transmitting high and low resolution video signals over telephone exchange lines
US4766402A (en) 1987-08-06 1988-08-23 3Com Corporation Apparatus for matching unbalanced R. F. baseband signals to balanced signals on a twisted two-wire line
US4789994A (en) 1987-08-12 1988-12-06 American Telephone And Telegraph Company, At&T Bell Laboratories Adaptive equalizer using precursor error signal for convergence control
US4837799A (en) 1987-10-05 1989-06-06 Ambassador College Telephone line communications control system
US4932022A (en) 1987-10-07 1990-06-05 Telenova, Inc. Integrated voice and data telephone system
US4975906A (en) 1988-02-15 1990-12-04 Hitachi, Ltd. Network system
US4885747A (en) 1988-02-17 1989-12-05 International Business Machines Corp. Broadband and baseband LAN
US4953160A (en) 1988-02-24 1990-08-28 Integrated Network Corporation Digital data over voice communication
JPH01236873A (en) 1988-03-17 1989-09-21 Erubetsukusu Video Kk Closed circuit television system
US4924492A (en) 1988-03-22 1990-05-08 American Telephone And Telegraph Company Method and apparatus for wideband transmission of digital signals between, for example, a telephone central office and customer premises
US4996709A (en) * 1988-05-12 1991-02-26 Tandy Corporation Intercom telephone
US4882747A (en) 1988-05-12 1989-11-21 Jerry Williams Infrared communication apparatus for remote site applications
US4979028A (en) 1988-05-30 1990-12-18 Sony Corporation Video telephone
US4849811A (en) 1988-07-06 1989-07-18 Ben Kleinerman Simultaneous audio and video transmission with restricted bandwidth
US4890316A (en) 1988-10-28 1989-12-26 Walsh Dale M Modem for communicating at high speed over voice-grade telephone circuits
US4989081A (en) * 1988-11-14 1991-01-29 Sony Corporation Home-bus-information system
US4949187A (en) 1988-12-16 1990-08-14 Cohen Jason M Video communications system having a remotely controlled central source of video and audio data
US5625863A (en) * 1989-04-28 1997-04-29 Videocom, Inc. Video distribution system using in-wall wiring
US5090052A (en) * 1989-05-18 1992-02-18 Tandy Corporation Telephone system with multiple extension telephones
US5036513A (en) 1989-06-21 1991-07-30 Academy Of Applied Science Method of and apparatus for integrated voice (audio) communication simultaneously with "under voice" user-transparent digital data between telephone instruments
US5010399A (en) 1989-07-14 1991-04-23 Inline Connection Corporation Video transmission and control system utilizing internal telephone lines
US5095497A (en) * 1989-10-02 1992-03-10 At & T Bell Laboratories Technique for achieving the full coding gain of encoded digital signals
US5051822A (en) 1989-10-19 1991-09-24 Interactive Television Systems, Inc. Telephone access video game distribution center
GB8924839D0 (en) 1989-11-03 1989-12-20 Raynet Gmbh Transmission of broadband signals
US5127041A (en) 1990-06-01 1992-06-30 Spectrum Information Technologies, Inc. System and method for interfacing computers to diverse telephone networks
US5283637A (en) * 1990-08-20 1994-02-01 Christine Holland Trustee/Goolcharan Trust Telecommunication system for transmitting full motion video
US5257006A (en) 1990-09-21 1993-10-26 Echelon Corporation Method and apparatus for power line communications
US5528281A (en) 1991-09-27 1996-06-18 Bell Atlantic Network Services Method and system for accessing multimedia data over public switched telephone network
US5550836A (en) 1992-11-06 1996-08-27 Hewlett-Packard Company High speed data transfer over twisted pair cabling
US5463616A (en) 1993-01-07 1995-10-31 Advanced Protocol Systems, Inc. Method and apparatus for establishing a full-duplex, concurrent, voice/non-voice connection between two sites
US5452289A (en) 1993-01-08 1995-09-19 Multi-Tech Systems, Inc. Computer-based multifunction personal communications system
US5646983A (en) 1993-03-25 1997-07-08 U.S. Robotics Access Corp. Host computer digital signal processing system for communicating over voice-grade telephone channels
EP0693238A4 (en) 1993-04-06 2000-03-08 Creative Integrated Syst Inc A home and small business phone system for operation on a single internal twisted pair line
US5778303A (en) 1993-04-16 1998-07-07 Matsushita Electric Industrial Co., Inc. Multiplexed audio-video signal transmission system through pair-wire
US5379005A (en) * 1993-07-16 1995-01-03 Tut Systems, Inc. Flat cable to flat parallel wire cable
US5587692A (en) 1994-05-18 1996-12-24 Tut Systems, Inc. Common mode current cancellation in twisted pairs
US5949476A (en) 1993-10-20 1999-09-07 Cableshare, Inc. Television system distributing a dynamically varying number of concurrent video presentations over a single television channel
US5408260A (en) * 1994-01-11 1995-04-18 Northern Telecom Limited Customer premises ADSL signal distribution arrangement
JP3192318B2 (en) 1994-05-20 2001-07-23 松下電工株式会社 Wireless information transmission system
US5553063A (en) 1994-09-12 1996-09-03 Dickson; William D. Voice over data communication system
CA2203561C (en) 1994-10-24 2004-09-21 Thomas Andrew Boyd Apparatus for providing access to field devices in a distributed control system
US5621455A (en) 1994-12-01 1997-04-15 Objective Communications, Inc. Video modem for transmitting video data over ordinary telephone wires
US5675375A (en) 1994-12-15 1997-10-07 Harris Corporation Home videoconferencing system (HVS)
US5651010A (en) * 1995-03-16 1997-07-22 Bell Atlantic Network Services, Inc. Simultaneous overlapping broadcasting of digital programs
EP0815682B1 (en) 1995-03-16 2002-01-23 Telecommunications Research laboratories Networking computers via shared use of voice telephone lines
GB9517034D0 (en) * 1995-08-19 1995-10-25 Northern Telecom Ltd Digital transmission system
US5696790A (en) 1995-10-04 1997-12-09 Tut Systems, Inc. Method and apparatus for time dependent data transmission
US5757803A (en) 1995-11-27 1998-05-26 Analog Devices, Inc. Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission
US6473609B1 (en) 1995-12-11 2002-10-29 Openwave Systems Inc. Method and architecture for interactive two-way communication devices to interact with a network
US5787115A (en) 1995-12-28 1998-07-28 Northern Telecom Limited Key telephone system without common control
US5848054A (en) 1996-02-07 1998-12-08 Lutron Electronics Co. Inc. Repeater for transmission system for controlling and determining the status of electrical devices from remote locations
US5912895A (en) 1996-05-01 1999-06-15 Northern Telecom Limited Information network access apparatus and methods for communicating information packets via telephone lines
US6002722A (en) 1996-05-09 1999-12-14 Texas Instruments Incorporated Multimode digital modem
EP0913039A1 (en) 1996-07-19 1999-05-06 BRITISH TELECOMMUNICATIONS public limited company Telecommunications system simultaneously recieving and modulating an optical signal
US5841360A (en) 1996-10-21 1998-11-24 Binder; Yehuda Distributed serial control system
US5960066A (en) 1996-11-07 1999-09-28 Lucent Technologies, Inc. Method and apparatus for using telephone house wiring for voice/data network
US6052380A (en) * 1996-11-08 2000-04-18 Advanced Micro Devices, Inc. Network adapter utilizing an ethernet protocol and utilizing a digital subscriber line physical layer driver for improved performance
US5878047A (en) * 1996-11-15 1999-03-02 International Business Machines Corporation Apparatus for provision of broadband signals over installed telephone wiring
US6061392A (en) 1996-12-17 2000-05-09 Paradyne Corporation Apparatus and method for communicating voice and data between a customer premises and a central office
US5841840A (en) 1996-12-23 1998-11-24 Paradyne Corporation Multiple line modem and method for providing voice on demand
US5896443A (en) 1997-01-10 1999-04-20 Intel Corporation Phone line computer networking
US6061357A (en) 1997-02-06 2000-05-09 Gte Laboratories Incorporated Ethernet to ADSL adapter
US5995598A (en) 1997-02-10 1999-11-30 International Business Machines Corporation Phone line LAN
US5848150A (en) 1997-02-26 1998-12-08 Paradyne Corporation Passive distributed filter system and method
US6580785B2 (en) 1997-02-28 2003-06-17 Paradyne Corporation Apparatus and method for simultaneous multiple telephone type services on a single telephone line
US6192399B1 (en) * 1997-07-11 2001-02-20 Inline Connections Corporation Twisted pair communication system
US6088368A (en) 1997-05-30 2000-07-11 3Com Ltd. Ethernet transport facility over digital subscriber lines
US5930340A (en) 1997-07-07 1999-07-27 Advanced Micro Devices Device and method for isolating voice and data signals on a common carrier
US5982784A (en) 1997-07-07 1999-11-09 Advanced Micro Devices Bandwidth sharing for remote and local data transfers using multicarrier modulation over common transmission medium
KR20010023363A (en) 1997-08-27 2001-03-26 노만 코트럴 Apparatus and method for concurrent voice and data transmission
US6414952B2 (en) 1997-08-28 2002-07-02 Broadcom Homenetworking, Inc. Virtual gateway system and method
US5963539A (en) 1997-09-08 1999-10-05 Tut Systems, Inc. Method and apparatus for detecting collisions on a network
US5963595A (en) 1997-09-08 1999-10-05 Tut Systems, Inc. Method and apparatus for encoding and decoding a bit sequence for transmission over POTS wiring
US6130893A (en) 1997-10-09 2000-10-10 Nortel Networks Corporation Method and apparatus for multiplexing telephone lines over a common access network
US6026150A (en) * 1997-10-30 2000-02-15 Epigram Network protocol--based home entertainment network
US6141356A (en) 1997-11-10 2000-10-31 Ameritech Corporation System and method for distributing voice and data information over wireless and wireline networks
US6212227B1 (en) * 1997-12-02 2001-04-03 Conexant Systems, Inc. Constant envelope modulation for splitterless DSL transmission
US6202211B1 (en) * 1998-02-06 2001-03-13 Henry R. Williams, Jr. Method and apparatus for providing television signals to multiple viewing systems on a network
US6430199B1 (en) 1998-03-27 2002-08-06 Telcordia Technologies, Inc. Method and system for distributing telephone and broadband services over the copper pairs within a service location
US6115755A (en) 1998-04-09 2000-09-05 Novaweb Technologies, Inc. Integrated apparatus for interfacing several computers to the internet through a single connection
US6349133B1 (en) * 1998-04-15 2002-02-19 Premisenet Incorporated Method and system for interfacing a telephony network and a digital data stream
JP3186693B2 (en) * 1998-04-24 2001-07-11 三菱電機株式会社 Data communication equipment
US20030016794A1 (en) * 1998-05-14 2003-01-23 John D.W. Brothers Communication of information via two wire lines
US6539011B1 (en) * 1998-06-10 2003-03-25 Merlot Communications, Inc. Method for initializing and allocating bandwidth in a permanent virtual connection for the transmission and control of audio, video, and computer data over a single network fabric
US6292467B1 (en) 1998-06-19 2001-09-18 Advanced Micro Devices, Inc. Apparatus and method of determining a link status between network stations connected to a telephone line medium
CN1155170C (en) 1998-06-24 2004-06-23 Sk泰力康姆株式会社 Relay installation using telephone line
US6424661B1 (en) 1998-06-25 2002-07-23 Alcatel Usa Sourcing, L.P. ADSL with RF POTS overlay
US6763097B1 (en) 1999-06-24 2004-07-13 Coppergate Communications Ltd. Source adaptive digital subscriber line and method
US6216160B1 (en) 1998-07-20 2001-04-10 Intel Corporation Automatically configurable computer network
US6370149B1 (en) * 1998-07-20 2002-04-09 Ameritech Corporation Telecommunication system, method and subscriber unit for use therein
US7177910B1 (en) 1998-07-21 2007-02-13 Globespanvirata, Inc. System and method for communicating in a point-to-multipoint DSL network
US6480510B1 (en) 1998-07-28 2002-11-12 Serconet Ltd. Local area network of serial intelligent cells
US6038425A (en) * 1998-08-03 2000-03-14 Jeffrey; Ross A. Audio/video signal redistribution system
US6567981B1 (en) 1998-08-03 2003-05-20 Elysium Broadband Inc. Audio/video signal redistribution system
US6292517B1 (en) 1998-09-15 2001-09-18 Tut Systems, Inc. Method and apparatus for detecting a data signal on a carrier medium
US6427237B1 (en) 1998-09-15 2002-07-30 Avaya Technology Corp. Network for distributing multimedia signals over a primary signal distribution path
US6678321B1 (en) * 1998-09-15 2004-01-13 Tut Systems, Inc. Method and apparatus for transmitting and receiving a symbol over pots wiring using a multi-cycle waveform
US6735217B1 (en) 1998-09-15 2004-05-11 Tut Systems, Inc. Method and apparatus for detecting collisions on a network using multi-cycle waveform pulses
US6243571B1 (en) 1998-09-21 2001-06-05 Phonex Corporation Method and system for distribution of wireless signals for increased wireless coverage using power lines
US6137865A (en) 1998-09-28 2000-10-24 Broadmedia, Inc. Transmission and reception of data over a home network implemented upon a phone line system
US6996213B1 (en) * 1998-09-29 2006-02-07 Sun Microsystems, Inc. Superposition of data over voice
US6087860A (en) 1998-10-14 2000-07-11 Advanced Micro Devices, Inc. Apparatus and method for generating an envelope for data signals using CMOS
US6771750B1 (en) 1998-10-29 2004-08-03 Advanced Micro Devices, Inc. Physical layer transceiver architecture for a home network station connected to a telephone line medium
US6522662B1 (en) * 1998-10-30 2003-02-18 Compaq Information Technologies Group, L.P. Method and apparatus for providing a 10BASE-T compatible home network over a single twisted-pair phone line
US6320900B1 (en) 1998-10-30 2001-11-20 Compaq Computer Corporation Methods and arrangements for transmitting high speed data over reduced bandwidth communication resources
US6393050B1 (en) 1998-10-30 2002-05-21 Compaq Information Technologies Group, L.P. Transmit/receive switch for 10BASE-T home network
US6470053B1 (en) 1998-10-30 2002-10-22 Compaq Information Technologies Group, L.P. Methods and arrangements for transmitting data over twisted pair wire using RF modulation techniques
US6556581B1 (en) 1998-10-30 2003-04-29 Hewlett-Packard Development Company, L.P. Ethernet to phase shift key converter
US6094441A (en) 1998-10-30 2000-07-25 Advanced Micro Devices, Inc. Apparatus and method for controlling transmission parameters of home network stations transmitting on a telephone line medium
US6731627B1 (en) 1998-11-17 2004-05-04 Cisco Technology, Inc. Virtual loop carrier system
US6678721B1 (en) * 1998-11-18 2004-01-13 Globespanvirata, Inc. System and method for establishing a point-to-multipoint DSL network
US6310894B1 (en) 1998-11-23 2001-10-30 Verizon Laboratories Inc. Method and apparatus for service multiplexing over telephone networks which employ bridged tap construction
US6778817B1 (en) 1998-12-01 2004-08-17 Phonex Corporation Method and system for combining wireless phone jack and RF wireless communications
US6389125B1 (en) 1998-12-04 2002-05-14 Agere Systems Guardian Corp. Shared information between multiple telephones
US6240166B1 (en) 1998-12-08 2001-05-29 Conexant Systems, Inc. LAN connection using analog modems via telephone wiring
US6857123B1 (en) 1998-12-18 2005-02-15 International Business Machines Corporation Method and apparatus for a Meta Data Service in a data processing system
US6434123B1 (en) 1998-12-28 2002-08-13 Ericsson Inc. Apparatus and method for broadband data communication
US6522730B1 (en) * 1999-01-15 2003-02-18 Texas Instruments Incorporated DSL communication system with improved bandwidth
WO2000051350A1 (en) * 1999-02-22 2000-08-31 Terk Technologies Corp. Video transmission system and method utilizing phone lines in multiple unit dwellings
US6738382B1 (en) 1999-02-24 2004-05-18 Stsn General Holdings, Inc. Methods and apparatus for providing high speed connectivity to a hotel environment
US6324268B1 (en) 1999-03-01 2001-11-27 Ericsson Inc. Splitter-less digital subscriber loop modems with improved throughput and voice and data separation
CA2265394A1 (en) 1999-03-12 2000-09-12 Paul A. Hanrieder Digital switching system with shared analog line
US6868072B1 (en) * 1999-03-19 2005-03-15 Broadcom Corporation Home phone line network architecture
US6473495B1 (en) 1999-04-15 2002-10-29 Advanced Micro Devices, Inc. Apparatus and method for coupling analog subscriber lines connected to a private branch exchange for transmission of network data signals in a home network
US6587479B1 (en) 1999-04-21 2003-07-01 Opencell Corp. Architecture for signal distribution in wireless data network
US6483902B1 (en) 1999-04-30 2002-11-19 Wayport, Inc. System and method for retrofitting existing building telecommunications infrastructures
JP2000332812A (en) * 1999-05-24 2000-11-30 Nec Corp Integrated transmitter, lan communication unit and telephone communication unit utilizing the integrated transmitter, and communication method
US6785296B1 (en) 1999-05-25 2004-08-31 Globespanvirata, Inc System and method for providing bandwidth management within a small office, home office network
US6721419B1 (en) 1999-06-09 2004-04-13 Premisenet Incorporated Method and system for selecting a frequency for communication within a premises network
US6532279B1 (en) * 1999-06-11 2003-03-11 David D. Goodman High-speed data communication over a residential telephone wiring network
US6819760B1 (en) 1999-06-21 2004-11-16 Advanced Micro Devices, Inc. Adaptive energy detector gain control in physical layer transceiver for home telephone wire network
US6690677B1 (en) * 1999-07-20 2004-02-10 Serconet Ltd. Network for telephony and data communication
US6603808B1 (en) 1999-07-22 2003-08-05 Compaq Information Technologies Group, L.P. Dual mode phone line networking modem utilizing conventional telephone wiring
US6526581B1 (en) * 1999-08-03 2003-02-25 Ucentric Holdings, Llc Multi-service in-home network with an open interface
US6754186B1 (en) 1999-08-27 2004-06-22 Agere Systems Inc. DSL active modem detection
US6397288B1 (en) 1999-09-03 2002-05-28 Xid Wireless Technology Inc Rf PC interface
US6653932B1 (en) 1999-09-29 2003-11-25 Skyworks Solutions, Inc. System and method for achieving wireless communications coverage in a local area
US6711138B1 (en) * 1999-09-30 2004-03-23 Conexant Systems, Inc. Digital subscriber line/home phoneline network router
US6693916B1 (en) * 1999-10-22 2004-02-17 Viadux, Inc. Method and system for combining symmetric DSL signals and voice signals
KR100506233B1 (en) * 1999-10-27 2005-09-02 삼성전자주식회사 Home network system in asymmetric digital subscriber line system
US7149474B1 (en) 1999-11-02 2006-12-12 Broadcom Corporation Wireless cable replacement system
US6522728B1 (en) * 1999-11-03 2003-02-18 Advanced Micro Devices, Inc. Apparatus and method of implementing a universal home network on a customer premises ISDN bus
US6836546B1 (en) 1999-11-03 2004-12-28 Advanced Micro Devices, Inc. Apparatus and method of coupling home network signals between an analog phone line and a digital bus
US6778646B1 (en) 1999-11-04 2004-08-17 2Wire, Inc. System and method for coupling multiple home networks
US6580710B1 (en) 1999-11-19 2003-06-17 At&T Corp. Method and apparatus for facilitating intra-premises voice and data distribution using existing in-place POTS telephone lines
US6771774B1 (en) 1999-12-02 2004-08-03 Tut Systems, Inc. Filter arrangement for shaping a pulse propagated over pots wiring, and a method of manufacturing the same
CA2327813A1 (en) 1999-12-07 2001-06-07 Kazuo Yahiro Information terminal and information terminal system
US6275373B1 (en) 1999-12-09 2001-08-14 Pacesetter, Inc. Enhanced very high volt electrolyte
US6839345B2 (en) * 1999-12-17 2005-01-04 Texas Instruments Incorporated MAC/PHY interface
US6732315B2 (en) 2000-01-31 2004-05-04 Texas Instruments Incorporated Home networking over phone lines
US6922407B2 (en) 2000-02-14 2005-07-26 Texas Instruments Incorporated HomePNA 10M8 compliant transceiver
US20020039388A1 (en) 2000-02-29 2002-04-04 Smart Kevin J. High data-rate powerline network system and method
US6721790B1 (en) 2000-03-09 2004-04-13 Avinta Communications, Inc User settable unified workstation identification system
US6549616B1 (en) * 2000-03-20 2003-04-15 Serconet Ltd. Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets
US6934754B2 (en) 2000-04-03 2005-08-23 Ibahn General Holdings, Inc. Methods and apparatus for processing network data transmissions
US6721365B1 (en) 2000-04-18 2004-04-13 Shih-Chung Yin Receiver for a home phone-lines LAN system
US7106721B1 (en) 2000-04-18 2006-09-12 Serconet, Ltd. Telephone communication system over a single telephone line
EP1279258A1 (en) 2000-04-26 2003-01-29 Philips Electronics N.V. Residential communication system
US6532280B1 (en) * 2000-04-27 2003-03-11 Infineon Technologies North America Corp. Integrated circuit card for computer communication
WO2001084806A3 (en) * 2000-05-02 2002-02-07 Phonex Broadband Corp Method and system for adapting a telephone line modem for use on the power line
WO2001086914A3 (en) * 2000-05-08 2002-05-10 Broadcom Corp System and method for supporting multiple voice channels
CN1452836A (en) 2000-05-22 2003-10-29 印菲内奥技术股份有限公司 Integrated telephone set with xDSL-modem
US6904134B2 (en) 2000-06-16 2005-06-07 Lg Electronics Inc. Network infrastructure integrated system
EP1310048B1 (en) 2000-07-11 2008-12-03 THOMSON Licensing Modular power line network adapter
US6822946B1 (en) 2000-08-24 2004-11-23 Motorola, Inc Wireless bridge for a broadband network
US6449318B1 (en) 2000-08-28 2002-09-10 Telenetwork, Inc. Variable low frequency offset, differential, OOK, high-speed twisted pair communication
US6831975B1 (en) 2000-09-13 2004-12-14 Texas Instruments Incorporated Digital subscriber line (DSL) modem compatible with home networks
EP1608119B1 (en) 2000-09-17 2008-11-05 Serconet Ltd. System and method for actively terminating a transmission line
US6961303B1 (en) 2000-09-21 2005-11-01 Serconet Ltd. Telephone communication system and method over local area network wiring
US6778549B1 (en) 2000-09-22 2004-08-17 Advanced Micro Devices, Inc. Coupling device connecting multiple pots lines in an HPNA environment
US6701406B1 (en) * 2000-11-17 2004-03-02 Advanced Micro Devices, Inc. PCI and MII compatible home phoneline networking alliance (HPNA) interface device
KR100396920B1 (en) 2000-12-27 2003-09-02 한국전자통신연구원 Modular Type Home Gateway System Including ADSL Controller And HomePNA Controller
US8677423B2 (en) 2000-12-28 2014-03-18 At&T Intellectual Property I, L. P. Digital residential entertainment system
DE60115497D1 (en) * 2001-01-16 2006-01-05 Serconet Ltd Method and telephone connection FOR CONNECTING TELEPHONE AND DATA DEVICES BY MEANS OF A JOINT CONNECTOR TO A TELEPHONE LINE
US20050204066A9 (en) 2001-02-13 2005-09-15 T.M.T. Third Millenium Technologies Ltd. Cableran home networking over coaxial cables
US7142563B1 (en) 2001-02-20 2006-11-28 At&T Corp. Service interface for QoS-driven HPNA networks
US20020128009A1 (en) 2001-02-20 2002-09-12 Erik Boch Transceiver for fixed wireless access network applications
US20020176567A1 (en) 2001-03-19 2002-11-28 Cui Chen Method and apparatus for dynamically adjusting receiver sensitivity over a phone line home network
US6909725B1 (en) 2001-03-23 2005-06-21 Advanced Micro Devices, Inc. Implementation of HPNA 2.0 network states in hardware
US20020144159A1 (en) 2001-03-30 2002-10-03 Kuo-Yang Wu HomePNA device with the function of transmitting power over a network wire
US6925089B2 (en) 2001-05-02 2005-08-02 Advanced Micro Devices, Inc. Mechanism to consolidate HPNA three network states into two network states
US7594249B2 (en) 2001-05-04 2009-09-22 Entropic Communications, Inc. Network interface device and broadband local area network using coaxial cable
US6963559B2 (en) 2001-05-23 2005-11-08 Nokia Corporation Arrangement of local area network
US6697358B2 (en) * 2001-07-18 2004-02-24 2Wire, Inc. Emulation of phone extensions in a packet telephony distribution system
US7142560B2 (en) 2001-08-14 2006-11-28 Sharp Laboratories Of America, Inc. System and method for virtual multiline telephony in a home-network telephone
US20030062990A1 (en) 2001-08-30 2003-04-03 Schaeffer Donald Joseph Powerline bridge apparatus
FR2831002B1 (en) 2001-10-16 2004-01-02 Victor Kossikouma Agbegnenou versatile wireless communication system
US6947736B2 (en) 2001-11-20 2005-09-20 Texas Instruments Incorporated Universal broadband home network for scalable IEEE 802.11 based wireless and wireline networking
US20030112965A1 (en) 2001-12-18 2003-06-19 Mediamax, Inc. Active wall outlet
US7324586B2 (en) 2002-01-21 2008-01-29 Coppergate Communication, Ltd. Method and system for communication backward compatibility
US7346332B2 (en) * 2002-01-25 2008-03-18 Ksc Industries Incorporated Wired, wireless, infrared, and powerline audio entertainment systems
US7099368B2 (en) 2002-06-21 2006-08-29 Pulse-Link, Inc. Ultra-wideband communication through a wire medium
US20040198236A1 (en) 2002-08-30 2004-10-07 Scott Paine Wireless telephone jack
US8356067B2 (en) 2002-10-24 2013-01-15 Intel Corporation Servicing device aggregates
US7154996B2 (en) 2002-10-29 2006-12-26 Agere Systems Inc. Dynamic frequency passband switching in home phone-line networks
US20040090984A1 (en) 2002-11-12 2004-05-13 Intel Corporation Network adapter for remote devices
KR100500639B1 (en) 2002-12-03 2005-07-11 한국전자통신연구원 A home gateway system and method realization including in-home phone line switching function
US20050076149A1 (en) 2002-12-04 2005-04-07 Macphy Technologies, Inc. Method and apparatus for providing broadband wireless access services using the low voltage power line
US7995516B2 (en) * 2003-01-28 2011-08-09 Top Global Technologies Limited Mobile wireless base station
US7065350B2 (en) 2003-03-28 2006-06-20 Sony Corporation Apparatus and method for communicating a wireless data signal in a building
US7590144B1 (en) * 2003-05-13 2009-09-15 Advanced Digital Broadcast Holdings S.A. Network router apparatus and method
EP1623510A4 (en) 2003-05-14 2010-01-06 Resource Consortium Ltd Infrared signal distribution and management system and method
US6998964B2 (en) * 2003-05-30 2006-02-14 Adc Dsl Systems, Inc. Splitter
US20040264087A1 (en) * 2003-06-30 2004-12-30 Bishop Roger S Transient protector for wireless communications equipment
US7194639B2 (en) 2003-06-30 2007-03-20 Tellabs Vienna, Inc. Power adapter and broadband line extender system and method
KR100541942B1 (en) * 2003-08-11 2006-01-10 삼성전자주식회사 Apparatus for managing home-devices remotely in home-network and method thereof
WO2005019845A1 (en) 2003-08-15 2005-03-03 Northrop Grumman Corporation Threshold adjustment accuracy for ground fault condition determination
US7399205B2 (en) 2003-08-21 2008-07-15 Hill-Rom Services, Inc. Plug and receptacle having wired and wireless coupling
JP2005073141A (en) 2003-08-27 2005-03-17 Toshiba Corp Data transmission equipment and power supply control method
US7092693B2 (en) 2003-08-29 2006-08-15 Sony Corporation Ultra-wide band wireless / power-line communication system for delivering audio/video content
US7095849B2 (en) 2004-07-09 2006-08-22 Bellsouth Intellectual Property Corporation Integrated filter and modular jack for voice over digital subscriber line service
KR100605600B1 (en) 2004-07-27 2006-07-28 주식회사 하이닉스반도체 Semiconductor memory device
US20060153169A1 (en) 2004-12-13 2006-07-13 Smartlink Ltd. Customer premises network with PSTN and packet telephony functions
US20060193310A1 (en) 2005-02-25 2006-08-31 Telkonet, Inc. Local area network above telephony methods and devices
US20060193313A1 (en) 2005-02-25 2006-08-31 Telkonet, Inc. Local area network above telephony infrastructure
US20060251159A1 (en) 2005-03-28 2006-11-09 Huotari Allen J Residential voice over broadband
US20060215680A1 (en) 2005-03-28 2006-09-28 Camagna John R Method for high voltage power feed on differential cable pairs
US20060251179A1 (en) 2005-03-28 2006-11-09 Akros Silicon, Inc. Ethernet bridge
US7469348B2 (en) 2005-03-28 2008-12-23 Akros Silicon, Inc. Method for dynamic insertion loss control for 10/100/1000 MHz Ethernet signaling
US7746884B2 (en) 2005-04-08 2010-06-29 At&T Intellectual Property I, L.P. Communications gateway and method of using the same
US7668195B2 (en) 2005-06-14 2010-02-23 General Instrument Corporation Method and apparatus for transmitting and receiving data over a shared access carrier network
US7672448B2 (en) 2005-06-23 2010-03-02 2Wire, Inc. Network interface device with a remote power source
WO2009138876A3 (en) 2008-05-13 2010-04-08 Mobileaccess Networks Ltd. Multiple data services over a distributed antenna system

Patent Citations (391)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092709A (en) 1935-11-19 1937-09-07 Hazeltine Corp Band-pass filter
US2298435A (en) 1940-11-26 1942-10-13 Rca Corp Radio relaying
US2411786A (en) 1944-08-11 1946-11-26 Farnsworth Television & Radio Communications system
US2613285A (en) 1946-08-16 1952-10-07 Farnsworth Res Corp Balanced input high-frequency amplifier
US2747083A (en) 1950-06-07 1956-05-22 Radio Patents Company Frequency-modulated high-frequency system
US2671850A (en) 1951-02-07 1954-03-09 Pierre C Marcou Radio relaying system
US2964623A (en) 1958-02-11 1960-12-13 Zenith Radio Corp Receiver having two input sources and respective tuning means, one of which, when selected, grounds the non-used source for both incoming interference and outgoing radiation signals
US3072899A (en) 1960-02-15 1963-01-08 Gen Precision Inc Remote interrogator-responder signal-ling system communications channel apparatus
US2986723A (en) 1960-02-26 1961-05-30 Bell Telephone Labor Inc Synchronization in a system of interconnected units
US3274339A (en) 1961-05-10 1966-09-20 Int Standard Electric Corp Time division multiplex transmission systems
US3699250A (en) 1965-01-11 1972-10-17 Bunting Sterisystems Inc Process and signal distributing system and apparatus used therein
US3656112A (en) 1969-03-14 1972-04-11 Constellation Science And Tech Utility meter remote automatic reading system
US4013840A (en) 1972-05-15 1977-03-22 Teleplex, Inc. Tdm and fdm telephone communication
US4063173A (en) 1976-04-01 1977-12-13 Motorola, Inc. Dual mode receiver
US4049914A (en) 1976-08-30 1977-09-20 Rockwell International Corporation Frequency division multiplex voice communication apparatus with hierarchy of stations
US4200862A (en) 1977-01-07 1980-04-29 Pico Electronics Limited Appliance control
US4205270A (en) 1977-06-30 1980-05-27 Pioneer Electronic Corporation Station selection indicating device
US4199761A (en) 1978-08-02 1980-04-22 Westinghouse Electric Corp. Multichannel radio communication system for automated power line distribution networks
US4186347A (en) 1978-10-31 1980-01-29 Nasa Radio frequency arraying method for receivers
US4449246A (en) 1980-05-02 1984-05-15 Harris Corporation Orderwire communication system
US4476574A (en) 1980-09-17 1984-10-09 The United States Of America As Represented By The United States Department Of Energy Radio frequency communication system utilizing radiating transmission lines
US4417279A (en) 1981-02-16 1983-11-22 Hitachi, Ltd. FM Television signal receiving circuit
US4467140A (en) 1981-05-01 1984-08-21 Masco Corporation Of Indiana Microprocessor-based cordless telephone system
US4500976A (en) 1982-06-07 1985-02-19 Phillips Petroleum Company Seismic exploration
US4462113A (en) 1982-07-06 1984-07-24 Iwata Electric Co., Ltd. Cordless transmitting and receiving apparatus
US4777652A (en) 1982-07-27 1988-10-11 A.R.F. Products Radio communication systems for underground mines
US4556988A (en) 1982-09-27 1985-12-03 Alps. Electric Co., Ltd. Indoor unit of receiver for broadcasting satellite
US4456925A (en) 1982-10-04 1984-06-26 Zenith Radio Corporation Television/telephone system with automatic dialing
US4468538A (en) 1982-12-16 1984-08-28 Gte Automatic Electric Inc. Wireless telephone system with high level dial pulse signalling
US4528519A (en) 1983-01-12 1985-07-09 Ncr Corporation Automatic gain control
US4509211A (en) 1983-05-16 1985-04-02 Xantech Corporation Infrared extension system
US4941207A (en) 1984-05-01 1990-07-10 Nihon Musen Kabushiki Kaisha Structure for wireless communication in an electromagnetically shielded building
US4706274A (en) 1984-05-11 1987-11-10 Southwestern Bell Telecommunications, Inc. Cordless telephone system
US5734678A (en) 1985-03-20 1998-03-31 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US5657358A (en) 1985-03-20 1997-08-12 Interdigital Technology Corporation Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or plurality of RF channels
US4856085A (en) 1986-03-21 1989-08-08 U.S. Philips Corporation FM receiver with improved adjacent-channel rejection
US4850009A (en) 1986-05-12 1989-07-18 Clinicom Incorporated Portable handheld terminal including optical bar code reader and electromagnetic transceiver means for interactive wireless communication with a base communications station
US5812184A (en) 1986-05-14 1998-09-22 Radio Telecom & Technology, Inc. Transmission of frame-to-frame reversed polarity signals in a two-way cable TV conversion system
US4718108A (en) 1986-05-19 1988-01-05 Motorola, Inc. Improved multiple site communication system
US4866757A (en) 1986-10-22 1989-09-12 Nilssen Ole K Combined telephone and power distribution system
US5210788A (en) 1986-10-22 1993-05-11 Nilssen Ole K Telephone instrument and distribution system
US4746809A (en) 1986-10-30 1988-05-24 Pittway Corporation AC power line signaling system
US4864588A (en) 1987-02-11 1989-09-05 Hillier Technologies Limited Partnership Remote control system, components and methods
US4885803A (en) 1987-03-17 1989-12-05 Lawrence W. Hermann System and method for controlling a plurality of electronic entertainment devices
US4999613A (en) 1987-04-21 1991-03-12 Guardian Technologies, Inc. Remote confinement system
US4980665A (en) 1987-05-22 1990-12-25 Recoton Corporation Remote control repeater
US4941200A (en) 1987-08-03 1990-07-10 Orion Industries, Inc. Booster
US5045948A (en) 1987-09-15 1991-09-03 Donald A. Streck Television local wireless transmission and control
US4901368A (en) 1987-10-19 1990-02-13 American Telephone And Telegraph Company Frequency translation correction scheme for satellite communication system
US4918690A (en) 1987-11-10 1990-04-17 Echelon Systems Corp. Network and intelligent cell for providing sensing, bidirectional communications and control
US4916460A (en) 1988-01-29 1990-04-10 Decibel Products, Incorporated Distributed antenna system
US4959862A (en) 1988-04-28 1990-09-25 Catel Telecommunications, Inc. Active multichannel video processing hub for optimum transition from fiber to coax
EP0342858A2 (en) 1988-05-13 1989-11-23 Shimizu Construction Co., Ltd. System for re-emitting electromagnetic waves received from outside within an electromagnetic shielded space
EP0355328A2 (en) 1988-08-25 1990-02-28 ANT Nachrichtentechnik GmbH Space diversity receiving circuit
US4972505A (en) 1988-12-06 1990-11-20 Isberg Reuben A Tunnel distributed cable antenna system with signal top coupling approximately same radiated energy
US5230086A (en) 1989-02-04 1993-07-20 Plessey Semiconductors Limited Narrow band communication system
US5109222A (en) 1989-03-27 1992-04-28 John Welty Remote control system for control of electrically operable equipment in people occupiable structures
US5929896A (en) 1989-07-14 1999-07-27 Inline Connection Corporation RF broadcast system utilizing internal telephone lines
US5046135A (en) 1989-11-30 1991-09-03 John E. Chance & Associates Method and apparatus for frequency stabilization of a down converter
US5142397A (en) 1990-01-04 1992-08-25 Dockery Devan T System for extending the effective operational range of an infrared remote control system
US5187803A (en) 1990-01-18 1993-02-16 Andrew Corporation Regenerative rf bi-directional amplifier system
US5109532A (en) 1990-01-30 1992-04-28 General Instrument Corporation Elimination of phase noise and drift incident to up and down conversion in a broadcast communication system
US5187806A (en) 1990-02-16 1993-02-16 Johnson Edward R Apparatus and method for expanding cellular system capacity
US5321846A (en) 1990-04-28 1994-06-14 Sony Corporation Signal transmission system with quicker response and with parallel and serial outputs
US5251053A (en) 1990-06-15 1993-10-05 Alcatel N.V. Radio communication system
US5115463A (en) 1990-06-25 1992-05-19 David Moldavsky Extended cordless telephone system
US5432838A (en) 1990-12-14 1995-07-11 Ainsworth Technologies Inc. Communication system
US5161021A (en) 1990-12-18 1992-11-03 Tsai Ching Yun Wireless video/audio signal or data transmission device and its remote control circuit
US5809395A (en) 1991-01-15 1998-09-15 Rogers Cable Systems Limited Remote antenna driver for a radio telephony system
US5265150A (en) 1991-01-30 1993-11-23 At&T Bell Laboratories Automatically configuring wireless PBX system
US5565855A (en) 1991-05-06 1996-10-15 U.S. Philips Corporation Building management system
US5297203A (en) 1991-05-29 1994-03-22 Video Technology Engineering, Ltd. Digital cordless telephone apparatus
US5489894A (en) 1991-07-08 1996-02-06 Motorola, Inc. Television paging system
US5247347A (en) 1991-09-27 1993-09-21 Bell Atlantic Network Services, Inc. Pstn architecture for video-on-demand services
US5361407A (en) 1991-12-02 1994-11-01 Sony Corporation Double superheterodyne receiver with independent frequency calibration of two local oscillators
US5321736A (en) 1992-01-03 1994-06-14 Pcs Microcell International Inc. Distributed RF repeater arrangement for cordless telephones
US5428836A (en) 1992-01-21 1995-06-27 Motorola Inc. Radio receiver for forming a baseband signal of time-varying frequencies
US5255268A (en) 1992-02-04 1993-10-19 International Business Data distribution network with improved broadcast feature
US5481249A (en) 1992-02-14 1996-01-02 Canon Kabushiki Kaisha Bidirectional communication apparatus for transmitting/receiving information by wireless communication or through a power line
JPH05252559A (en) 1992-03-06 1993-09-28 Nippon Telegr & Teleph Corp <Ntt> Diversity transmission and reception system
GB2266028A (en) 1992-03-31 1993-10-13 Usw Pcn Inc Active two-way radio repeater
JPH05327576A (en) 1992-05-15 1993-12-10 Nippon Telegr & Teleph Corp <Ntt> Diversity transmission/reception system
JPH05327569A (en) 1992-05-25 1993-12-10 Nippon Telegr & Teleph Corp <Ntt> Diversity transmission/reception system
US5339184A (en) 1992-06-15 1994-08-16 Gte Laboratories Incorporated Fiber optic antenna remoting for multi-sector cell sites
US5404570A (en) 1992-11-23 1995-04-04 Telefonaktiebolaget L M Ericsson Radio coverage in closed environments
WO1994013067A1 (en) 1992-11-23 1994-06-09 Telefonaktiebolaget Lm Ericsson Radio coverage in closed environments
US5603080A (en) 1992-11-23 1997-02-11 Telefonaktiebolaget Lm Ericsson Radio coverage in closed environments
US5550898A (en) 1992-11-30 1996-08-27 Lucent Technologies Inc. Metallic macrocell/microcell interface
US5628055A (en) 1993-03-04 1997-05-06 Telefonaktiebolaget L M Ericsson Publ Modular radio communications system
US5469495A (en) 1993-05-28 1995-11-21 U S West Advanced Technologies, Inc. Method and apparatus for delivering secured telephone service in hybrid coaxial cable network
US6862349B1 (en) 1993-05-28 2005-03-01 Mediaone Group, Inc. Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network
US5619251A (en) 1993-08-13 1997-04-08 Kabushiki Kaisha Toshiba Two-way CATV system and remote control system
US5537637A (en) 1993-09-21 1996-07-16 Nhk Integrated Technology, Inc. Medium-frequency radio broadcasting retransmission system for confined and electromagnetically shielded areas
US5579221A (en) 1993-12-31 1996-11-26 Samsung Electronics Co., Ltd. Home automation system having user controlled definition function
US5457557A (en) 1994-01-21 1995-10-10 Ortel Corporation Low cost optical fiber RF signal distribution system
US5572575A (en) 1994-03-24 1996-11-05 Matsushita Electric Industrial Co., Ltd. Cordless telephone system having speaker phone function
US5708705A (en) 1994-04-28 1998-01-13 Nec Corporation Wallhung arrangement for a cordless telephone
US5502446A (en) 1994-05-02 1996-03-26 Trimble Navigation Limited GPS-based automatic target reporting and finding network and components
US5551057A (en) 1994-06-08 1996-08-27 Lucent Technologies Inc. Cellular mobile radio system power control
US5815086A (en) 1994-10-20 1998-09-29 Ies Technologies, Inc. Automated appliance control system
US5910776A (en) 1994-10-24 1999-06-08 Id Technologies, Inc. Method and apparatus for identifying locating or monitoring equipment or other objects
US5634191A (en) 1994-10-24 1997-05-27 Pcs Microcell International, Inc. Self-adjusting RF repeater arrangements for wireless telephone systems
WO1996013102A1 (en) 1994-10-24 1996-05-02 Motorola Inc. Method and apparatus for fast fourier transform based maximal ratio combining
EP0709974A1 (en) 1994-10-26 1996-05-01 Northern Telecom Limited Method and arrangement for antenna diversity in a base station receiver
US5758294A (en) 1994-11-23 1998-05-26 Hughs Electronics Corporation Radio port in a wireless personal communication system
US5828663A (en) 1994-12-02 1998-10-27 Nec Corp. Access control system for wireless-lan terminals
US5539821A (en) 1995-01-24 1996-07-23 At&T Corp. Power outlet mount for a portable telephone
US5619505A (en) 1995-01-26 1997-04-08 Motorola Inc. Method for producing and recovering a data stream for a DMT transceiver
US5600333A (en) 1995-01-26 1997-02-04 Larsen Electronics, Inc. Active repeater antenna assembly
US6032057A (en) 1995-01-26 2000-02-29 Nokia Telecommunications Oy Cellular radio system repeater and base station
US5708961A (en) 1995-05-01 1998-01-13 Bell Atlantic Network Services, Inc. Wireless on-premises video distribution using digital multiplexing
US5953670A (en) 1995-05-02 1999-09-14 Northern Telecom Limited Arrangement for providing cellular communication via a CATV network
US5574964A (en) 1995-05-30 1996-11-12 Apple Computer, Inc. Signal distribution system
US5812786A (en) 1995-06-21 1998-09-22 Bell Atlantic Network Services, Inc. Variable rate and variable mode transmission system
US5901340A (en) 1995-06-28 1999-05-04 The Whitaker Corporation Wideband signal distribution system
US20050265430A1 (en) 1995-06-30 2005-12-01 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US5937348A (en) 1995-10-05 1999-08-10 International Business Machines Corporation Cordless communication system for a portable computer modem
US5832364A (en) 1995-10-06 1998-11-03 Airnet Communications Corp. Distributing wireless system carrier signals within a building using existing power line wiring
US6353599B1 (en) 1995-10-16 2002-03-05 Nec Corporation Wireless enumeration
US5835863A (en) 1995-10-25 1998-11-10 Oki Electric Industry Co., Ltd. Wireless telephone for cellular telephone system
US6005884A (en) 1995-11-06 1999-12-21 Ems Technologies, Inc. Distributed architecture for a wireless data communications system
US5694232A (en) 1995-12-06 1997-12-02 Ericsson Raynet Full duplex optical modem for broadband access network
US5774789A (en) 1995-12-14 1998-06-30 Allen Telecom Inc. RF communication signal distribution system and method
US5838226A (en) 1996-02-07 1998-11-17 Lutron Electronics Co.Inc. Communication protocol for transmission system for controlling and determining the status of electrical devices from remote locations
US5736965A (en) 1996-02-07 1998-04-07 Lutron Electronics Co. Inc. Compact radio frequency transmitting and receiving antenna and control device employing same
US5905442A (en) 1996-02-07 1999-05-18 Lutron Electronics Co., Inc. Method and apparatus for controlling and determining the status of electrical devices from remote locations
US5982854A (en) 1996-02-23 1999-11-09 Alcatel Usa, Inc. Fiber optic based subscriber terminal
US5983070A (en) 1996-04-19 1999-11-09 Lgc Wireless, Inc. Method and system providing increased antenna functionality in a RF distribution system
US6157810A (en) 1996-04-19 2000-12-05 Lgc Wireless, Inc Distribution of radio-frequency signals through low bandwidth infrastructures
US5765099A (en) 1996-04-19 1998-06-09 Georges; John B. Distribution of radio-frequency signals through low bandwidth infrastructures
US5930682A (en) 1996-04-19 1999-07-27 Lgc Wireless, Inc. Centralized channel selection in a distributed RF antenna system
US6014546A (en) 1996-04-19 2000-01-11 Lgc Wireless, Inc. Method and system providing RF distribution for fixed wireless local loop service
US5995593A (en) 1996-04-30 1999-11-30 Samsung Electronics Co., Ltd. Wire/wireless communication system for communicating between two locations using telephone network
GB2313020A (en) 1996-05-09 1997-11-12 Samsung Electronics Co Ltd Base Station Apparatus for a CDMA Radio Communication System
US20040201457A1 (en) 1996-05-13 2004-10-14 O'toole James E. Radio frequency data communications device
US5896569A (en) 1996-05-15 1999-04-20 Communications Manufacturing Company Wireless access to telephone network dial tone
US5987303A (en) 1996-05-29 1999-11-16 At&T Corp. Wireless transmission using fiber link
US5748104A (en) 1996-07-11 1998-05-05 Qualcomm Incorporated Wireless remote telemetry system
WO1998004054A1 (en) 1996-07-18 1998-01-29 Ericsson Inc. System and method for reducing cumulative noise in a distributed antenna network
US6128470A (en) 1996-07-18 2000-10-03 Ericsson Inc. System and method for reducing cumulative noise in a distributed antenna network
US5696861A (en) 1996-08-13 1997-12-09 Schimmeyer; Werner K. Method and apparatus for simultaneously connecting data/signal communication lines and power lines to a data/RF receiver/transmitter
US5822678A (en) 1996-08-29 1998-10-13 Ericsson, Inc. CATV network for transport of radio frequency signals
US6330244B1 (en) 1996-09-05 2001-12-11 Jerome Swartz System for digital radio communication between a wireless lan and a PBX
US6622304B1 (en) 1996-09-09 2003-09-16 Thomas W. Carhart Interface system for computing apparatus and communications stations
US5930719A (en) 1996-09-19 1999-07-27 Wireless Logic, Inc. Data and voice cordless telephone system
US5832365A (en) 1996-09-30 1998-11-03 Lucent Technologies Inc. Communication system comprising an active-antenna repeater
US5940400A (en) 1996-11-06 1999-08-17 Motorola, Inc. Method, device, wireless transceiver and computer for providing collision detection in wireless carrier sense multiple access systems
US5936660A (en) 1996-12-12 1999-08-10 Rockwell Semiconductor System, Inc. Digital video converter box for subscriber/home with multiple television sets
US5937342A (en) 1997-01-28 1999-08-10 Dynamic Telecommunications, Inc. Wireless local distribution system using standard power lines
US5977913A (en) 1997-02-07 1999-11-02 Dominion Wireless Method and apparatus for tracking and locating personnel
US6618578B1 (en) 1997-02-14 2003-09-09 Statsignal Systems, Inc System and method for communicating with a remote communication unit via the public switched telephone network (PSTN)
US5926531A (en) 1997-02-14 1999-07-20 Statsignal Systems, Inc. Transmitter for accessing pay-type telephones
US6493875B1 (en) 1997-02-19 2002-12-10 Next Level Communications, Inc. In-home wireless
US6317884B1 (en) 1997-02-19 2001-11-13 Next Level Communications Video, data and telephony gateway
US5864284A (en) 1997-03-06 1999-01-26 Sanderson; Lelon Wayne Apparatus for coupling radio-frequency signals to and from a cable of a power distribution network
EP0938204A1 (en) 1997-03-18 1999-08-25 Matsushita Electric Industrial Co., Ltd. Calibration device for array antenna wireless receiver
US5994998A (en) 1997-05-29 1999-11-30 3Com Corporation Power transfer apparatus for concurrently transmitting data and power over data wires
US6151480A (en) 1997-06-27 2000-11-21 Adc Telecommunications, Inc. System and method for distributing RF signals over power lines within a substantially closed environment
US5950149A (en) 1997-06-30 1999-09-07 Chrysler Corporation Method for testing vehicle electrical system during manufacturing
US7181023B1 (en) 1997-08-15 2007-02-20 Leisure Tech Electronics Pty., Ltd. Distributed stereo system
US6737984B1 (en) 1997-08-15 2004-05-18 General Electric Company Automatic meter reading system using locally communicating utility meters
US6069899A (en) 1997-08-28 2000-05-30 Broadcam Homenetworking, Inc. Home area network system and method
US7027416B1 (en) 1997-10-01 2006-04-11 Honeywell, Inc. Multi tier wireless communication system
US5986574A (en) 1997-10-16 1999-11-16 Peco Energy Company System and method for communication between remote locations
US6130896A (en) 1997-10-20 2000-10-10 Intel Corporation Wireless LAN segments with point coordination
US5982363A (en) 1997-10-24 1999-11-09 General Instrument Corporation Personal computer-based set-top converter for television services
US6175860B1 (en) 1997-11-26 2001-01-16 International Business Machines Corporation Method and apparatus for an automatic multi-rate wireless/wired computer network
US6256296B1 (en) 1997-12-17 2001-07-03 Yaron Ruziak Network communications link
US6049705A (en) 1998-02-03 2000-04-11 Ericsson Inc. Diversity for mobile terminals
US6101341A (en) 1998-02-04 2000-08-08 Fuji Photo Optical Co., Ltd. Photographic camera
US6040759A (en) 1998-02-17 2000-03-21 Sanderson; Lelon Wayne Communication system for providing broadband data services using a high-voltage cable of a power system
US20020037004A1 (en) 1998-03-13 2002-03-28 Ameritech Corporation Home gateway system and method
US6243413B1 (en) 1998-04-03 2001-06-05 International Business Machines Corporation Modular home-networking communication system and method using disparate communication channels
US6249671B1 (en) 1998-06-05 2001-06-19 Lxe, Inc. Aesthetic enclosure for a wireless network access point
US6400957B1 (en) 1998-06-17 2002-06-04 Smart-Tel Llc Wireless phone-line interface
US6108331A (en) 1998-07-10 2000-08-22 Upstate Systems Tec, Inc. Single medium wiring scheme for multiple signal distribution in building and access port therefor
US6725059B1 (en) 1998-07-21 2004-04-20 Globespanvirata, Inc. System and method for improving communications between a digital loop carrier and a central office
US6392349B1 (en) 1998-10-30 2002-05-21 David B. Crenshaw Remote control test apparatus
US6452923B1 (en) 1998-12-31 2002-09-17 At&T Corp Cable connected wan interconnectivity services for corporate telecommuters
US6901439B1 (en) 1999-01-22 2005-05-31 Leviton Manufacturing Co., Inc. Method of adding a device to a network
US7123939B1 (en) 1999-02-05 2006-10-17 Interdigital Technology Corporation Communication station with automatic cable loss compensation
US6069588A (en) 1999-02-11 2000-05-30 Ericsson Inc. Systems and methods for coaxially coupling an antenna to a radiotelephone through a window and amplifying signals adjacent and inside the window
US6580728B1 (en) 1999-03-11 2003-06-17 Qwest Communications International Inc. Local multi-point-distribution system architectures
US6941576B2 (en) 1999-04-12 2005-09-06 Texas Instruments Incorporated System and methods for home network communications
US20020061012A1 (en) 1999-04-13 2002-05-23 Thi James C. Cable modem with voice processing capability
US6668328B1 (en) 1999-05-19 2003-12-23 Globespanvirata, Inc. Computer system having a power supply for coupling signals to a power line network and transmitting infrared signal to at least one peripheral card
US6513163B1 (en) 1999-05-20 2003-01-28 Transcept, Inc. Embedded forward reference and control
US6546098B1 (en) 1999-06-21 2003-04-08 Conexant Systems, Inc. System and method for distributing enhanced telephony service to customer premises equipment
US7099621B1 (en) 1999-06-25 2006-08-29 Cocomo Mb Communications, Inc. Electromagnetic field communications system for wireless networks
US6931659B1 (en) 1999-08-05 2005-08-16 Sharp Kabushiki Kaisha Cable modem having a wireless communication function
US7133729B1 (en) 1999-08-17 2006-11-07 Microsoft Corporation Pattern-and model-based power line monitoring
US6535110B1 (en) 1999-08-17 2003-03-18 Microsoft Corporation Device adapter for automation system
US6961763B1 (en) 1999-08-17 2005-11-01 Microsoft Corporation Automation system for controlling and monitoring devices and sensors
US6996837B1 (en) 1999-08-27 2006-02-07 Pioneer Corporation Terminal equipment for cable television
US6483470B1 (en) 1999-09-08 2002-11-19 Qwest Communications International, Inc. Power supply for a light pole mounted wireless antenna
EP1085684A2 (en) 1999-09-14 2001-03-21 Hitachi, Ltd. Antenna unit and radio base station
US6654616B1 (en) 1999-09-27 2003-11-25 Verizon Laboratories Inc. Wireless area network having flexible backhauls for creating backhaul network
US6198432B1 (en) 1999-09-29 2001-03-06 Trimble Navigation Limited Method and apparatus for automatic and autonomous assignment of PRN codes to a multiplicity of pseudolites
US6218931B1 (en) 1999-10-08 2001-04-17 Advanced Micro Devices, Inc. Home-appliance network with nodes identified by direct-sequence spreading codes
US20020049036A1 (en) 1999-10-13 2002-04-25 Scott R. Bullock Wireless phone/data jack using 49 mhz rf technology
US6650871B1 (en) 1999-10-14 2003-11-18 Agere Systems Inc. Cordless RF range extension for wireless piconets
US6710721B1 (en) 1999-10-16 2004-03-23 Datamatic Inc. Radio frequency automated meter reading device
US6501942B1 (en) 1999-10-29 2002-12-31 Qualcomm, Incorporated In-building radio-frequency coverage
US6760601B1 (en) 1999-11-29 2004-07-06 Nokia Corporation Apparatus for providing information services to a telecommunication device user
US7035270B2 (en) 1999-12-30 2006-04-25 General Instrument Corporation Home networking gateway
US6346875B1 (en) 2000-01-03 2002-02-12 General Electric Company GHM aggregator
US6731945B2 (en) 2000-01-12 2004-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Private wireless WAP system
US6807463B1 (en) 2000-01-13 2004-10-19 Sunbeam Products, Inc. Processor-controlled mixture with weight sensors
US6857132B1 (en) 2000-01-14 2005-02-15 Terayon Communication Systems, Inc. Head end multiplexer to select and transmit video-on-demand and other requested programs and services
US7257106B2 (en) 2000-01-31 2007-08-14 3E Technologies International, Inc. Broadband communications access device
US20030169752A1 (en) 2000-01-31 2003-09-11 Aeptec Microsystems, Inc. Broadband communications access device
US6438109B1 (en) 2000-02-07 2002-08-20 Motorola, Inc. Method to establish a home network on multiple physical layers
US6826174B1 (en) 2000-03-02 2004-11-30 3Com Corporation Voice-over-IP interface for standard household telephone
US20030006881A1 (en) 2000-04-12 2003-01-09 Reyes Ronald R. System and method for power line communication
US6965302B2 (en) 2000-04-14 2005-11-15 Current Technologies, Llc Power line communication system and method of using the same
US6842459B1 (en) 2000-04-19 2005-01-11 Serconet Ltd. Network combining wired and non-wired segments
WO2001080543A2 (en) 2000-04-19 2001-10-25 Serconet Ltd. Network combining wired and non-wired segments
CN1430848A (en) 2000-04-19 2003-07-16 塞尔科尼特有限公司 Network combining wired and non-wired segments
US6862353B2 (en) 2000-04-24 2005-03-01 Broadcom Corporation System and method for providing power over a home phone line network
US6683531B2 (en) 2000-05-04 2004-01-27 Trench Limited Coupling device for providing a communications link for RF broadband data signals to a power line and method for installing same
US6400815B1 (en) 2000-05-23 2002-06-04 At&T Corp. Method and apparatus for subscriber line to telephone call distribution
US20050265428A1 (en) 2000-05-26 2005-12-01 Freescale Semiconductor, Inc. Low power, high resolution timing generator for ultra-wide bandwidth communication systems
US7009946B1 (en) 2000-06-22 2006-03-07 Intel Corporation Method and apparatus for multi-access wireless communication
US6895249B2 (en) 2000-07-14 2005-05-17 Qualcomm Incorporated Method and apparatus for broadcasting position location data in a wireless communication system
US20040213351A1 (en) 2000-07-19 2004-10-28 Shattil Steve J. Method and apparatus for transmitting signals having a carrier-interferometry architecture
US6452910B1 (en) 2000-07-20 2002-09-17 Cadence Design Systems, Inc. Bridging apparatus for interconnecting a wireless PAN and a wireless LAN
US6492897B1 (en) 2000-08-04 2002-12-10 Richard A. Mowery, Jr. System for coupling wireless signals to and from a power transmission line communication system
US6980089B1 (en) 2000-08-09 2005-12-27 Current Technologies, Llc Non-intrusive coupling to shielded power cable
US6995657B2 (en) 2000-08-14 2006-02-07 Main.Net Communications Ltd. Power line communication system
US7167923B2 (en) 2000-08-24 2007-01-23 2Wire, Inc. System and method for selectively bridging and routing data packets between multiple networks
US20020035624A1 (en) 2000-09-19 2002-03-21 Samsung Electronics Co., Ltd. Gateway and a method for operating the same
US20020034220A1 (en) 2000-09-21 2002-03-21 Tom Duxbury Apparatus and method for digital subscriber line signal communications
US20020038459A1 (en) 2000-09-28 2002-03-28 Pekka Talmola Method and arrangement for locally and wirelessly distributing broadband data
US6587739B1 (en) 2000-09-29 2003-07-01 Sunbeam Products, Inc. Appliance communication and control system and appliances for use in same
US6751441B1 (en) 2000-10-03 2004-06-15 At&T Corp. Intra-premises wireless broadband service using lumped and distributed wireless radiation from cable source input
US20050114325A1 (en) 2000-10-30 2005-05-26 Microsoft Corporation Semi-automatic annotation of multimedia objects
US6738641B1 (en) 2000-11-22 2004-05-18 Toshiba America Information Systems, Inc. Distributed transceiver for wireless communication system
US20020075806A1 (en) 2000-11-27 2002-06-20 Ofir Shalvi Delivery of high QoS broadband services
US6583719B2 (en) 2000-11-30 2003-06-24 Matsushita Electric Works, Ltd. Setting apparatus and setting method each for setting setting information in electric power line carrier communication terminal apparatus
US6563418B1 (en) 2000-12-08 2003-05-13 Cisco Technology, Inc. Automotive network and adapter
US20040248531A1 (en) 2001-01-12 2004-12-09 Nec Corporation Method and circuit for avoiding band interference wave in receiver
US6572384B1 (en) 2001-02-08 2003-06-03 3Com Corporation Method and apparatus for interconnecting circuit cards
WO2002065229A2 (en) 2001-02-13 2002-08-22 T.M.T. Third Millenium Technologies Ltd. Cableran networking over coaxial cables
US6950567B2 (en) 2001-02-14 2005-09-27 Current Technologies, Llc Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US6933835B2 (en) 2001-02-14 2005-08-23 Current Technologies, Llc Data communication over a power line
US7103240B2 (en) 2001-02-14 2006-09-05 Current Technologies, Llc Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US7194251B2 (en) 2001-03-20 2007-03-20 3Com Corporation Intelligent gate distributed use and device network access management on personal area network
US7299287B1 (en) 2001-03-20 2007-11-20 3Com Corporation Secure network outlet for supporting IP device address assigning functionality
US6577231B2 (en) 2001-04-03 2003-06-10 Thomson Licensing Sa Clock synchronization over a powerline modem network for multiple devices
US20020146207A1 (en) 2001-04-05 2002-10-10 Max Chu Fiber converter faceplate outlet
US20040102196A1 (en) 2001-04-06 2004-05-27 Mikko Weckstrom Location method and system
WO2002091618A1 (en) 2001-05-02 2002-11-14 Passover, Inc. Multi-band cellular service over catv network
US7027770B2 (en) 2001-05-22 2006-04-11 Andrew Corporation Repeater for customer premises
US20040208167A1 (en) 2001-06-04 2004-10-21 Hiroyuki Kishida Internet telephone apparatus and internet telephone system
US20020186836A1 (en) 2001-06-12 2002-12-12 Leuca Ileana A. Multi-service network interface apparatus for frequency-division multiplexed communications systems
US20040131357A1 (en) 2001-07-05 2004-07-08 Wave7 Optics, Inc. Method and system for supporting multiple services with a subscriber optical interface located outside a subscriber's premises
US6963936B2 (en) 2001-07-16 2005-11-08 Hewlett-Packard Development Company, L.P. Network-attached peripheral appliance
US20030018975A1 (en) 2001-07-18 2003-01-23 Stone Christopher J. Method and system for wireless audio and video monitoring
US20030031191A1 (en) 2001-07-21 2003-02-13 Ladd El Wardani Broadband network bridging various wiring channels
US6573826B2 (en) 2001-07-25 2003-06-03 Yuan-Sheng Pan Wireless communication system by using electric power line as data link network
US20030067910A1 (en) 2001-08-30 2003-04-10 Kaveh Razazian Voice conferencing over a power line
US20050024945A1 (en) 2001-08-30 2005-02-03 Micron Technology, Inc. Programmable memory address and decode circuits with low tunnel barrier interpoly insulators
US20060056283A1 (en) 2001-09-05 2006-03-16 Santosh Anikhindi Interference mitigation in a wireless communication system
US7003102B2 (en) 2001-10-10 2006-02-21 Pulse Engineering, Inc. Telecommunications gateway and method
US20030068033A1 (en) 2001-10-10 2003-04-10 Kiko Frederick J. Telecommunications gateway and method
US6987988B2 (en) 2001-10-22 2006-01-17 Waxess, Inc. Cordless and wireless telephone docking station with land line interface and switching mode
US7164886B2 (en) 2001-10-30 2007-01-16 Texas Instruments Incorporated Bluetooth transparent bridge
US7009527B2 (en) 2001-11-22 2006-03-07 Doo Won Co., Ltd Control system for suppling power by power line communication
US6985714B2 (en) 2001-11-27 2006-01-10 Sony Corporation Communication system, communication terminal and communication method
US20030099228A1 (en) 2001-11-28 2003-05-29 Martin Alcock Local area and multimedia network using radio frequency transceivers and coaxial cable
US20030100330A1 (en) 2001-11-28 2003-05-29 Tomlinson Harold Woodruff Universal telephone network-radio frequency enhanced bridge
US20030100288A1 (en) 2001-11-29 2003-05-29 General Electric Company One Research Circle Universal PLC radio frequency enhanced bridge
US20030106067A1 (en) 2001-11-30 2003-06-05 Hoskins Steve J. Integrated internet protocol (IP) gateway services in an RF cable network
US6844809B2 (en) 2001-12-04 2005-01-18 Constantine N. Manis Passive optical network backhaul for powerline communications
US6759946B2 (en) 2001-12-06 2004-07-06 Mitsubishi Electric Research Laboratories, Inc. Home appliances network
US6985072B2 (en) 2001-12-21 2006-01-10 Maxim Integrated Products, Inc. Apparatus and method for a low-rate data transmission mode over a power line
EP1331762A1 (en) 2002-01-25 2003-07-30 Quanta Computer Inc. Method and apparatus for a flexible peripheral access router
US20040073597A1 (en) 2002-01-30 2004-04-15 Caveney Jack E. Systems and methods for managing a network
US20050144647A1 (en) 2002-02-20 2005-06-30 Mordechai Zussman Wireless provider monitoring of catv segment
US20060007945A1 (en) 2002-03-11 2006-01-12 Roland Schoettle Medium to disparate medium hopping mesh network
US6831921B2 (en) 2002-03-27 2004-12-14 James A. Higgins Wireless internet access system
US20040208599A1 (en) 2002-04-04 2004-10-21 Jerome Swartz Communications system
US20060274745A1 (en) 2002-05-13 2006-12-07 Kiyon, Inc. System and Method for Transparent Wireless Bridging of Communication Channel Segments
US6748080B2 (en) 2002-05-24 2004-06-08 Scientific-Atlanta, Inc. Apparatus for entitling remote client devices
US6885674B2 (en) 2002-05-28 2005-04-26 Amperion, Inc. Communications system for providing broadband communications using a medium voltage cable of a power system
US7113763B2 (en) 2002-06-03 2006-09-26 Nokia Corporation Bluetooth access point and remote bluetooth modules for powerline based networking
US7167525B2 (en) 2002-06-21 2007-01-23 Pulse-Link, Inc. Ultra-wideband communication through twisted-pair wire media
US7027483B2 (en) 2002-06-21 2006-04-11 Pulse-Link, Inc. Ultra-wideband communication through local power lines
US6782048B2 (en) 2002-06-21 2004-08-24 Pulse-Link, Inc. Ultra-wideband communication through a wired network
US7151575B1 (en) 2002-07-18 2006-12-19 Entropic Communications, Inc. Wireless extension for cable television signals
US20040077310A1 (en) 2002-08-14 2004-04-22 David Levy Hybrid networking system
US20040032373A1 (en) 2002-08-14 2004-02-19 Argy Petros Combination satellite and terrestrial antenna
US6771164B1 (en) 2002-09-05 2004-08-03 Nrc Corporation Automatic identification of local devices
US7209945B2 (en) 2002-09-11 2007-04-24 Bellsouth Intellectual Property Corporation Application services gateway
US20050164666A1 (en) 2002-10-02 2005-07-28 Lang Jack A. Communication methods and apparatus
US6993317B2 (en) 2002-10-02 2006-01-31 Amperion, Inc. Method and system for signal repeating in powerline communications
US6914539B2 (en) 2002-10-07 2005-07-05 General Electric Company System and method for a low rate, in-band broadcast communication for medical telemetry
US7508785B2 (en) 2002-11-06 2009-03-24 Broadcom Corporation Downstream time domain based adaptive modulation for DOCSIS based applications
US20040085976A1 (en) 2002-11-06 2004-05-06 Mark Dale Downstream time domian based adaptive modulation for DOCSIS based applications
US6781530B2 (en) 2002-11-12 2004-08-24 Pulse-Link, Inc. Ultra-wideband pulse modulation system and method
US20040100930A1 (en) 2002-11-25 2004-05-27 Foxcom Wireless WLAN distributed antenna system
US7006006B2 (en) 2002-12-05 2006-02-28 Witkow Edward H System and method for controlling home entertainment units with radio frequency and infrared signals
US20060152344A1 (en) 2002-12-07 2006-07-13 Mowery Richard A Jr Powerline Communication Network Handoff
US7064654B2 (en) 2002-12-10 2006-06-20 Current Technologies, Llc Power line communication system and method of operating the same
US7088238B2 (en) 2002-12-11 2006-08-08 Broadcom, Inc. Access, monitoring, and control of appliances via a media processing system
US20040125870A1 (en) 2002-12-17 2004-07-01 Kenichi Yamazaki Interconnecting device with built-in power line communication modem
US20040158649A1 (en) 2002-12-20 2004-08-12 Lior Ophir System, method and apparatuses for hybrid coax-wireless multimedia networks using 802.11 technology
US20050034159A1 (en) 2002-12-20 2005-02-10 Texas Instruments Incorporated Implementing a hybrid wireless and coaxial cable network
US20040123322A1 (en) 2002-12-24 2004-06-24 Nedim Erkocevic Combining multimedia signaling and wireless network signaling on a common communication medium
US20040136388A1 (en) 2002-12-26 2004-07-15 Schaff Glen D. Video-monitor/recording/playback system
US20040187156A1 (en) 2003-01-08 2004-09-23 Stephen Palm Transporting home networking frame-based communication signals over coaxial cables
US7209719B2 (en) 2003-01-28 2007-04-24 Gateway Inc. Home power line network connected phone
US20050152337A1 (en) 2003-01-30 2005-07-14 Wireless Roots Ltd. Apparatus for allowing handheld wireless devices to communicate voice and information over preexisting telephone lines
US20040151305A1 (en) 2003-01-30 2004-08-05 Serconet Ltd Method and system for providing DC power on local telephone lines
WO2004068827A1 (en) 2003-01-30 2004-08-12 Wireless Roots Ltd. Apparatus for allowing handheld wireless devices to communicate voice and information over preexisting telephone lines
US7317793B2 (en) 2003-01-30 2008-01-08 Serconet Ltd Method and system for providing DC power on local telephone lines
US7015797B2 (en) 2003-02-10 2006-03-21 Cable Electronics, Inc. System and method of providing infra-red signals over power lines
US20050073968A1 (en) 2003-02-14 2005-04-07 Perlman Stephen G. Self-configuring, adaptive, three-dimensional, wireless network
US7117520B2 (en) 2003-02-24 2006-10-03 Thomson Licensing System and method for voice/data transmission over cable networks
US7292859B2 (en) 2003-03-19 2007-11-06 Samsung Electronics Co., Ltd. Apparatus and method for managing device information through networks
US20040203387A1 (en) 2003-03-31 2004-10-14 Sbc Knowledge Ventures, L.P. System and method for controlling appliances with a wireless data enabled remote control
US20040235468A1 (en) 2003-05-19 2004-11-25 Luebke Charles J. Wireless network clustering communication system, wireless communication network, and access port for same
WO2004107783A1 (en) 2003-05-30 2004-12-09 Utstarcom Korea Limited Remote unit for adding frequency assignments to a separation-type base transceiver station
US20070025368A1 (en) 2003-05-30 2007-02-01 Lg Electronics, Inc. Home network system
US20060251086A1 (en) 2003-05-30 2006-11-09 Sam-Chul Ha Home network system
US20040255332A1 (en) 2003-06-16 2004-12-16 Bertonis James G. Apparatus and method for extending DOCSIS cable modem service over wireless links
US20050010954A1 (en) 2003-07-09 2005-01-13 Serconet Ltd. Modular outlet
US7046716B1 (en) 2003-07-14 2006-05-16 Miao George J Dual-mode ultra wideband and wireless local area network communications
US7321316B2 (en) 2003-07-18 2008-01-22 Power Measurement, Ltd. Grouping mesh clusters
US20060066455A1 (en) 2003-07-18 2006-03-30 Hancock Martin A Grouping mesh clusters
US20050089061A1 (en) 2003-08-28 2005-04-28 Oleg Logvinov Joint powerline/ultra-wide band system
US20060172781A1 (en) 2003-09-03 2006-08-03 Behzad Mohebbi Short-range cellular booster
US20050084004A1 (en) 2003-10-17 2005-04-21 Angelo Bione Wireless DOCSIS modem
DE20317501U1 (en) 2003-11-13 2004-01-15 Coolnection Technology Co., Ltd. Integrated communication apparatus providing universal voice message transmission and reception for different types of telephone
US20050117545A1 (en) 2003-12-02 2005-06-02 Intel Corporation RF circuitry and compact hybrid for wireless communication devices
US20050136972A1 (en) 2003-12-09 2005-06-23 Smith Derek M. Plug-in network appliance
US20050180561A1 (en) 2004-02-16 2005-08-18 Serconet Ltd. Outlet add-on module
US20050181839A1 (en) 2004-02-17 2005-08-18 Nokia Corporation Devices and methods for simultaneous battery charging and data transmission in a mobile terminal
US7167078B2 (en) 2004-02-19 2007-01-23 Pourchot Shawn C Electric, telephone or network access control system and method
US20050184915A1 (en) 2004-02-25 2005-08-25 Control4 Corporation System for remotely controlling an electrical switching device
US7113134B1 (en) 2004-03-12 2006-09-26 Current Technologies, Llc Transformer antenna device and method of using the same
US20050226200A1 (en) 2004-03-26 2005-10-13 Edgecom A Power Line Communication System that Enables Low-Cost Last Mile Access to any Legacy or Emerging Network Infrastructure
US20050226206A1 (en) 2004-04-13 2005-10-13 Samsung Electronics Co., Ltd. System and method for wireless network in coordinator-based wireless environment
US20050239400A1 (en) 2004-04-21 2005-10-27 Mitsubishi Denki Kabushiki Kaisha Radio access line extending device
US20050268322A1 (en) 2004-05-04 2005-12-01 Watson Scott F Apparatus and method for utilizing a pre-existing power grid to provide internet access to a home or office or the like
US20080280569A1 (en) 2004-05-06 2008-11-13 Serconet Ltd. System and Method for Carrying a Wireless Based Signal Over Wiring
EP1749399A1 (en) 2004-05-06 2007-02-07 Serconet Ltd. System and method for carrying a wireless based signal over wiring
WO2005109845A1 (en) 2004-05-06 2005-11-17 Serconet Ltd. System and method for carrying a wireless based signal over wiring
US7266344B2 (en) 2004-06-02 2007-09-04 Wayne-Dalton Corp. Remotely activated bridge device for use with a home network and methods for programming and using the same
US20050280598A1 (en) 2004-06-21 2005-12-22 Lutron Electronics Co., Inc. Compact radio frequency transmitting and receiving antenna and control device employing same
US20080144493A1 (en) 2004-06-30 2008-06-19 Chi-Hsiang Yeh Method of interference management for interference/collision prevention/avoidance and spatial reuse enhancement
US20060018328A1 (en) 2004-07-23 2006-01-26 Comcast Cable Holdings, Llc Method and system for powerline networking
US7257108B2 (en) 2004-07-28 2007-08-14 Lenovo (Singapore) Pte. Ltd. Determining the physical location of resources on and proximate to a network
US7155214B2 (en) 2004-09-09 2006-12-26 Dana Innovations I-port controller
US7023382B1 (en) 2004-09-17 2006-04-04 Fujitsu Limited Positioning signal transmission apparatus
US20060072684A1 (en) 2004-10-05 2006-04-06 Kamilo Feher Data communication for wired and wireless communication
US7359449B2 (en) 2004-10-05 2008-04-15 Kamilo Feher Data communication for wired and wireless communication
WO2006052216A1 (en) 2004-11-15 2006-05-18 Northspark Ab A system for distributing radio signal
US20060128425A1 (en) 2004-12-13 2006-06-15 Rooyen Pieter V Method and system for mobile architecture supporting cellular or wireless networks and broadcast utilizing a multichip cellular and broadcast silicon solution
US20060126617A1 (en) 2004-12-15 2006-06-15 Cregg Daniel B Mesh network of intelligent devices communicating via powerline and radio frequency
US20060133465A1 (en) 2004-12-21 2006-06-22 Dockemeyer Joseph R Jr Wireless home repeater for satellite radio products
US20060210278A1 (en) 2005-03-21 2006-09-21 Cregg Daniel B Remote operation of local or distant infrared-controllable and non-infrared-controllable devices
US20060222086A1 (en) 2005-03-29 2006-10-05 Frye Bernard F Jr Multi-unit power line communications system and method
WO2006105185A2 (en) 2005-03-31 2006-10-05 Silicon Laboratories Inc. Techniques for partitioning radios in wireless communication systems
US20060220833A1 (en) 2005-04-04 2006-10-05 Berkman William H Power line communications system and method
US20070002772A1 (en) 2005-04-04 2007-01-04 Berkman William H Power Line Communication Device and Method
US20060262014A1 (en) 2005-05-17 2006-11-23 Yaron Shemesh Radio beacon, mobile station, processor, system and method for determining location
US20060276227A1 (en) 2005-06-02 2006-12-07 Qualcomm Incorporated Multi-antenna station with distributed antennas
US20060286958A1 (en) 2005-06-17 2006-12-21 Lee Hyung K Access pointer for interconnecting power line communication network and wireless network and method therefor
US20070002876A1 (en) 2005-06-21 2007-01-04 Berkman William H Wireless link for power line communications system
WO2006136811A1 (en) 2005-06-23 2006-12-28 Zinwave Limited Optical transmission system
US20070019959A1 (en) 2005-07-19 2007-01-25 Logus Broadband Wireless Solutions Inc. Apparatus and method for transferring signals between a fiber network and a wireless network antenna
US20070058666A1 (en) 2005-08-09 2007-03-15 Adc Telecommunications, Inc. Wall-mountable connector
US20070047573A1 (en) 2005-08-29 2007-03-01 Arkados, Inc. Networking and multimedia adapter for power outlets
US20070054622A1 (en) 2005-09-02 2007-03-08 Berkman William H Hybrid power line wireless communication system
US20070268886A1 (en) 2005-09-21 2007-11-22 Rami Caspi Method and apparatus for distributed indication of VoIP telephone calls
US20070083668A1 (en) 2005-10-07 2007-04-12 Network Chemistry, Inc. Method and apparatus for facilitating network expansion
US20070082649A1 (en) 2005-10-07 2007-04-12 Asoka Usa Corporation Power line communication and AC power outlet apparatus and method
US20070104168A1 (en) 2005-11-10 2007-05-10 Junxion Inc. Gateway network multiplexing
US20070112939A1 (en) 2005-11-17 2007-05-17 Sbc Knowledge Ventures L.P. System and method for home automation
WO2007069241A2 (en) 2005-12-12 2007-06-21 Distantec Ltd. Active ip control device
US20070139188A1 (en) 2005-12-15 2007-06-21 General Instrument Corporation Method and apparatus for communicating between a home network and a wireless network
US7813451B2 (en) 2006-01-11 2010-10-12 Mobileaccess Networks Ltd. Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting
US20070167144A1 (en) 2006-01-19 2007-07-19 Matsushita Electric Industrial Co., Ltd. Communication apparatus and communication method
US20070177495A1 (en) 2006-01-27 2007-08-02 Leviton Manufacturing Co., Inc. Lan by ultra-wideband system and method
US20070198748A1 (en) 2006-02-01 2007-08-23 Leviton Manufacturing Co., Inc. Power line communication hub system and method
US20070206629A1 (en) 2006-03-03 2007-09-06 Lite-On Technology Corp. Network Equipment Applied In Power Line Carrier Communication System
US20070268846A1 (en) 2006-03-31</